diff --git a/package-lock.json b/package-lock.json
index 8ac666b..ef53031 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,17 +4,24 @@
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
-    "@types/babel-types": {
-      "version": "7.0.7",
-      "resolved": "http://r.cnpmjs.org/@types/babel-types/download/@types/babel-types-7.0.7.tgz",
-      "integrity": "sha1-Zn6xZA6AOUNgKAVXN9K5mG7jNuM="
+    "@babel/helper-validator-identifier": {
+      "version": "7.12.11",
+      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.12.11.tgz",
+      "integrity": "sha512-np/lG3uARFybkoHokJUmf1QfEvRVCPbmQeUQpKow5cQ3xWrV9i3rUHodKDJPQfTVX61qKi+UdYk8kik84n7XOw=="
     },
-    "@types/babylon": {
-      "version": "6.16.5",
-      "resolved": "http://r.cnpmjs.org/@types/babylon/download/@types/babylon-6.16.5.tgz",
-      "integrity": "sha1-HFZB22nrjN83jt0ltL53VL7rSLQ=",
+    "@babel/parser": {
+      "version": "7.13.9",
+      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.13.9.tgz",
+      "integrity": "sha512-nEUfRiARCcaVo3ny3ZQjURjHQZUo/JkEw7rLlSZy/psWGnvwXFtPcr6jb7Yb41DVW5LTe6KRq9LGleRNsg1Frw=="
+    },
+    "@babel/types": {
+      "version": "7.13.0",
+      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.13.0.tgz",
+      "integrity": "sha512-hE+HE8rnG1Z6Wzo+MhaKE5lM5eMx71T4EHJgku2E3xIfaULhDcxiiRxUYgwX8qwP1BBSlag+TdGOt6JAidIZTA==",
       "requires": {
-        "@types/babel-types": "*"
+        "@babel/helper-validator-identifier": "^7.12.11",
+        "lodash": "^4.17.19",
+        "to-fast-properties": "^2.0.0"
       }
     },
     "abbrev": {
@@ -33,34 +40,9 @@
       }
     },
     "acorn": {
-      "version": "3.3.0",
-      "resolved": "http://r.cnpmjs.org/acorn/download/acorn-3.3.0.tgz",
-      "integrity": "sha1-ReN/s56No/JbruP/U2niu18iAXo="
-    },
-    "acorn-globals": {
-      "version": "3.1.0",
-      "resolved": "http://r.cnpmjs.org/acorn-globals/download/acorn-globals-3.1.0.tgz",
-      "integrity": "sha1-/YJw9x+7SZawBPqIDuXUZXOnMb8=",
-      "requires": {
-        "acorn": "^4.0.4"
-      },
-      "dependencies": {
-        "acorn": {
-          "version": "4.0.13",
-          "resolved": "http://r.cnpmjs.org/acorn/download/acorn-4.0.13.tgz",
-          "integrity": "sha1-EFSVrlNh1pe9GVyCUZLhrX8lN4c="
-        }
-      }
-    },
-    "align-text": {
-      "version": "0.1.4",
-      "resolved": "http://r.cnpmjs.org/align-text/download/align-text-0.1.4.tgz",
-      "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
-      "requires": {
-        "kind-of": "^3.0.2",
-        "longest": "^1.0.1",
-        "repeat-string": "^1.5.2"
-      }
+      "version": "7.4.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.4.1.tgz",
+      "integrity": "sha512-nQyp0o1/mNdbTO1PO6kHkwSrmgZ0MT/jCCpNiwbUjGoRN4dlBhqJtoQuCnEOKzgTVwg0ZWiCoQy6SxMebQVh8A=="
     },
     "amdefine": {
       "version": "1.0.1",
@@ -138,9 +120,14 @@
     },
     "asap": {
       "version": "2.0.6",
-      "resolved": "http://r.cnpmjs.org/asap/download/asap-2.0.6.tgz",
+      "resolved": "https://registry.npmjs.org/asap/-/asap-2.0.6.tgz",
       "integrity": "sha1-5QNHYR1+aQlDIIu9r+vLwvuGbUY="
     },
+    "assert-never": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/assert-never/-/assert-never-1.2.1.tgz",
+      "integrity": "sha512-TaTivMB6pYI1kXwrFlEhLeGfOqoDNdTxjCdwRfFFkEA30Eu+k48W34nlok2EYWJfFFzqaEmichdNM7th6M5HNw=="
+    },
     "assign-symbols": {
       "version": "1.0.0",
       "resolved": "http://r.cnpmjs.org/assign-symbols/download/assign-symbols-1.0.0.tgz",
@@ -164,31 +151,14 @@
       "integrity": "sha1-bZUX654DDSQ2ZmZR6GvZ9vE1M8k=",
       "dev": true
     },
-    "babel-runtime": {
-      "version": "6.26.0",
-      "resolved": "http://r.cnpmjs.org/babel-runtime/download/babel-runtime-6.26.0.tgz",
-      "integrity": "sha1-llxwWGaOgrVde/4E/yM3vItWR/4=",
+    "babel-walk": {
+      "version": "3.0.0-canary-5",
+      "resolved": "https://registry.npmjs.org/babel-walk/-/babel-walk-3.0.0-canary-5.tgz",
+      "integrity": "sha512-GAwkz0AihzY5bkwIY5QDR+LvsRQgB/B+1foMPvi0FZPMl5fjD7ICiznUiBdLYMH1QYe6vqu4gWYytZOccLouFw==",
       "requires": {
-        "core-js": "^2.4.0",
-        "regenerator-runtime": "^0.11.0"
+        "@babel/types": "^7.9.6"
       }
     },
-    "babel-types": {
-      "version": "6.26.0",
-      "resolved": "http://r.cnpmjs.org/babel-types/download/babel-types-6.26.0.tgz",
-      "integrity": "sha1-o7Bz+Uq0nrb6Vc1lInozQ4BjJJc=",
-      "requires": {
-        "babel-runtime": "^6.26.0",
-        "esutils": "^2.0.2",
-        "lodash": "^4.17.4",
-        "to-fast-properties": "^1.0.3"
-      }
-    },
-    "babylon": {
-      "version": "6.18.0",
-      "resolved": "http://r.cnpmjs.org/babylon/download/babylon-6.18.0.tgz",
-      "integrity": "sha1-ry87iPpvXB5MY00aD46sT1WzleM="
-    },
     "balanced-match": {
       "version": "1.0.0",
       "resolved": "http://r.cnpmjs.org/balanced-match/download/balanced-match-1.0.0.tgz",
@@ -404,6 +374,15 @@
         "ylru": "^1.2.0"
       }
     },
+    "call-bind": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/call-bind/-/call-bind-1.0.2.tgz",
+      "integrity": "sha512-7O+FbCihrB5WGbFYesctwmTKae6rOiIzmz1icreWJ+0aA7LJfuqhEso2T9ncpcFtzMQtzXf2QGGueWJGTYsqrA==",
+      "requires": {
+        "function-bind": "^1.1.1",
+        "get-intrinsic": "^1.0.2"
+      }
+    },
     "camelcase": {
       "version": "1.2.1",
       "resolved": "http://r.cnpmjs.org/camelcase/download/camelcase-1.2.1.tgz",
@@ -415,15 +394,6 @@
       "integrity": "sha1-psC74fOPOqC5Ijjstv9Cw0TUE10=",
       "dev": true
     },
-    "center-align": {
-      "version": "0.1.3",
-      "resolved": "http://r.cnpmjs.org/center-align/download/center-align-0.1.3.tgz",
-      "integrity": "sha1-qg0yYptu6XIgBBHL1EYckHvCt60=",
-      "requires": {
-        "align-text": "^0.1.3",
-        "lazy-cache": "^1.0.3"
-      }
-    },
     "chalk": {
       "version": "1.1.3",
       "resolved": "http://r.cnpmjs.org/chalk/download/chalk-1.1.3.tgz",
@@ -438,7 +408,7 @@
     },
     "character-parser": {
       "version": "2.2.0",
-      "resolved": "http://r.cnpmjs.org/character-parser/download/character-parser-2.2.0.tgz",
+      "resolved": "https://registry.npmjs.org/character-parser/-/character-parser-2.2.0.tgz",
       "integrity": "sha1-x84o821LzZdE5f/CxfzeHHMmH8A=",
       "requires": {
         "is-regex": "^1.0.3"
@@ -493,44 +463,12 @@
         }
       }
     },
-    "clean-css": {
-      "version": "4.2.1",
-      "resolved": "http://r.cnpmjs.org/clean-css/download/clean-css-4.2.1.tgz",
-      "integrity": "sha1-LUEe92uFabbQyEBo2r6FsKpeXBc=",
-      "requires": {
-        "source-map": "~0.6.0"
-      },
-      "dependencies": {
-        "source-map": {
-          "version": "0.6.1",
-          "resolved": "http://r.cnpmjs.org/source-map/download/source-map-0.6.1.tgz",
-          "integrity": "sha1-dHIq8y6WFOnCh6jQu95IteLxomM="
-        }
-      }
-    },
     "cli-boxes": {
       "version": "1.0.0",
       "resolved": "http://r.cnpmjs.org/cli-boxes/download/cli-boxes-1.0.0.tgz",
       "integrity": "sha1-T6kXw+WclKAEzWH47lCdplFocUM=",
       "dev": true
     },
-    "cliui": {
-      "version": "2.1.0",
-      "resolved": "http://r.cnpmjs.org/cliui/download/cliui-2.1.0.tgz",
-      "integrity": "sha1-S0dXYP+AJkx2LDoXGQMukcf+oNE=",
-      "requires": {
-        "center-align": "^0.1.1",
-        "right-align": "^0.1.1",
-        "wordwrap": "0.0.2"
-      },
-      "dependencies": {
-        "wordwrap": {
-          "version": "0.0.2",
-          "resolved": "http://r.cnpmjs.org/wordwrap/download/wordwrap-0.0.2.tgz",
-          "integrity": "sha1-t5Zpu0LstAn4PVg8rVLKF+qhZD8="
-        }
-      }
-    },
     "co": {
       "version": "4.6.0",
       "resolved": "http://r.cnpmjs.org/co/download/co-4.6.0.tgz",
@@ -607,14 +545,12 @@
       }
     },
     "constantinople": {
-      "version": "3.1.2",
-      "resolved": "http://r.cnpmjs.org/constantinople/download/constantinople-3.1.2.tgz",
-      "integrity": "sha1-1F7XJPV9PRBQABen06iJwTga5kc=",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/constantinople/-/constantinople-4.0.1.tgz",
+      "integrity": "sha512-vCrqcSIq4//Gx74TXXCGnHpulY1dskqLTFGDmhrGxzeXL8lF8kvXv6mpNWlJj1uD4DW23D4ljAqbY4RRaaUZIw==",
       "requires": {
-        "@types/babel-types": "^7.0.0",
-        "@types/babylon": "^6.16.2",
-        "babel-types": "^6.26.0",
-        "babylon": "^6.18.0"
+        "@babel/parser": "^7.6.0",
+        "@babel/types": "^7.6.1"
       }
     },
     "content-disposition": {
@@ -657,11 +593,6 @@
       "resolved": "http://r.cnpmjs.org/copy-to/download/copy-to-2.0.1.tgz",
       "integrity": "sha1-JoD7uAaKSNCGVrYJgJK9r8kG9KU="
     },
-    "core-js": {
-      "version": "2.6.11",
-      "resolved": "http://r.cnpmjs.org/core-js/download/core-js-2.6.11.tgz",
-      "integrity": "sha1-OIMUafmSK97Y7iHJ3EaYXgOZMIw="
-    },
     "core-util-is": {
       "version": "1.0.2",
       "resolved": "http://r.cnpmjs.org/core-util-is/download/core-util-is-1.0.2.tgz",
@@ -787,7 +718,7 @@
     },
     "doctypes": {
       "version": "1.1.0",
-      "resolved": "http://r.cnpmjs.org/doctypes/download/doctypes-1.1.0.tgz",
+      "resolved": "https://registry.npmjs.org/doctypes/-/doctypes-1.1.0.tgz",
       "integrity": "sha1-6oCxBqh1OHdOijpKWv4pPeSJ4Kk="
     },
     "dot-prop": {
@@ -830,11 +761,6 @@
       "resolved": "http://r.cnpmjs.org/escape-string-regexp/download/escape-string-regexp-1.0.5.tgz",
       "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ="
     },
-    "esutils": {
-      "version": "2.0.3",
-      "resolved": "http://r.cnpmjs.org/esutils/download/esutils-2.0.3.tgz",
-      "integrity": "sha1-dNLrTeC42hKTcRkQ1Qd1ubcQ72Q="
-    },
     "execa": {
       "version": "0.7.0",
       "resolved": "http://r.cnpmjs.org/execa/download/execa-0.7.0.tgz",
@@ -1048,7 +974,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -1069,12 +996,14 @@
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -1089,17 +1018,20 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -1216,7 +1148,8 @@
         "inherits": {
           "version": "2.0.4",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -1228,6 +1161,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -1242,6 +1176,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
@@ -1249,12 +1184,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.9.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.2",
             "yallist": "^3.0.0"
@@ -1273,6 +1210,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -1362,7 +1300,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -1374,6 +1313,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -1459,7 +1399,8 @@
         "safe-buffer": {
           "version": "5.1.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -1495,6 +1436,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -1514,6 +1456,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -1557,19 +1500,31 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },
     "function-bind": {
       "version": "1.1.1",
-      "resolved": "http://r.cnpmjs.org/function-bind/download/function-bind-1.1.1.tgz",
-      "integrity": "sha1-pWiZ0+o8m6uHS7l3O3xe3pL0iV0="
+      "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
+      "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A=="
+    },
+    "get-intrinsic": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.1.1.tgz",
+      "integrity": "sha512-kWZrnVM42QCiEA2Ig1bG8zjoIMOgxWwYCEeNdwY6Tv/cOSeGpcoX4pXHfKUxNKVoArnrEr2e9srnAxxGIraS9Q==",
+      "requires": {
+        "function-bind": "^1.1.1",
+        "has": "^1.0.3",
+        "has-symbols": "^1.0.1"
+      }
     },
     "get-stream": {
       "version": "3.0.0",
@@ -1640,8 +1595,8 @@
     },
     "has": {
       "version": "1.0.3",
-      "resolved": "http://r.cnpmjs.org/has/download/has-1.0.3.tgz",
-      "integrity": "sha1-ci18v8H2qoJB8W3YFOAR4fQeh5Y=",
+      "resolved": "https://registry.npmjs.org/has/-/has-1.0.3.tgz",
+      "integrity": "sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==",
       "requires": {
         "function-bind": "^1.1.1"
       }
@@ -1660,6 +1615,11 @@
       "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0=",
       "dev": true
     },
+    "has-symbols": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.0.2.tgz",
+      "integrity": "sha512-chXa79rL/UC2KlX17jo3vRGz0azaWEx5tGqZg5pO3NUyEJVB17dMruQlzCCOfUvElghKcm5194+BCRvi2Rv/Gw=="
+    },
     "has-value": {
       "version": "1.0.0",
       "resolved": "http://r.cnpmjs.org/has-value/download/has-value-1.0.0.tgz",
@@ -1778,7 +1738,8 @@
     "is-buffer": {
       "version": "1.1.6",
       "resolved": "http://r.cnpmjs.org/is-buffer/download/is-buffer-1.1.6.tgz",
-      "integrity": "sha1-76ouqdqg16suoTqXsritUf776L4="
+      "integrity": "sha1-76ouqdqg16suoTqXsritUf776L4=",
+      "dev": true
     },
     "is-ci": {
       "version": "1.2.1",
@@ -1789,6 +1750,14 @@
         "ci-info": "^1.5.0"
       }
     },
+    "is-core-module": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/is-core-module/-/is-core-module-2.2.0.tgz",
+      "integrity": "sha512-XRAfAdyyY5F5cOXn7hYQDqh2Xmii+DEfIcQGxK/uNwMHhIkPWO0g8msXcbzLe+MpGoR951MlqM/2iIlU4vKDdQ==",
+      "requires": {
+        "has": "^1.0.3"
+      }
+    },
     "is-data-descriptor": {
       "version": "0.1.4",
       "resolved": "http://r.cnpmjs.org/is-data-descriptor/download/is-data-descriptor-0.1.4.tgz",
@@ -1818,19 +1787,12 @@
       }
     },
     "is-expression": {
-      "version": "3.0.0",
-      "resolved": "http://r.cnpmjs.org/is-expression/download/is-expression-3.0.0.tgz",
-      "integrity": "sha1-Oayqa+f9HzRx3ELHQW5hwkMXrJ8=",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/is-expression/-/is-expression-4.0.0.tgz",
+      "integrity": "sha512-zMIXX63sxzG3XrkHkrAPvm/OVZVSCPNkwMHU8oTX7/U3AL78I0QXCEICXUM13BIa8TYGZ68PiTKfQz3yaTNr4A==",
       "requires": {
-        "acorn": "~4.0.2",
-        "object-assign": "^4.0.1"
-      },
-      "dependencies": {
-        "acorn": {
-          "version": "4.0.13",
-          "resolved": "http://r.cnpmjs.org/acorn/download/acorn-4.0.13.tgz",
-          "integrity": "sha1-EFSVrlNh1pe9GVyCUZLhrX8lN4c="
-        }
+        "acorn": "^7.1.1",
+        "object-assign": "^4.1.1"
       }
     },
     "is-extendable": {
@@ -1915,9 +1877,9 @@
       }
     },
     "is-promise": {
-      "version": "2.1.0",
-      "resolved": "http://r.cnpmjs.org/is-promise/download/is-promise-2.1.0.tgz",
-      "integrity": "sha1-eaKp7OfwlugPNtKy87wWwf9L8/o="
+      "version": "2.2.2",
+      "resolved": "https://registry.npmjs.org/is-promise/-/is-promise-2.2.2.tgz",
+      "integrity": "sha512-+lP4/6lKUBfQjZ2pdxThZvLUAafmZb8OAxFb8XXtiQmS35INgr85hdOGoEs124ez1FCnZJt6jau/T+alh58QFQ=="
     },
     "is-redirect": {
       "version": "1.0.0",
@@ -1926,11 +1888,12 @@
       "dev": true
     },
     "is-regex": {
-      "version": "1.0.5",
-      "resolved": "http://r.cnpmjs.org/is-regex/download/is-regex-1.0.5.tgz",
-      "integrity": "sha1-OdWJo1i/GJZ/cmlnEguPwa7XTq4=",
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/is-regex/-/is-regex-1.1.2.tgz",
+      "integrity": "sha512-axvdhb5pdhEVThqJzYXwMlVuZwC+FF2DpcOhTS+y/8jVq4trxyPgfcwIxIKiyeuLlSQYKkmUaPQJ8ZE4yNKXDg==",
       "requires": {
-        "has": "^1.0.3"
+        "call-bind": "^1.0.2",
+        "has-symbols": "^1.0.1"
       }
     },
     "is-retry-allowed": {
@@ -1970,7 +1933,7 @@
     },
     "js-stringify": {
       "version": "1.0.2",
-      "resolved": "http://r.cnpmjs.org/js-stringify/download/js-stringify-1.0.2.tgz",
+      "resolved": "https://registry.npmjs.org/js-stringify/-/js-stringify-1.0.2.tgz",
       "integrity": "sha1-Fzb939lyTyijaCrcYjCufk6Weds="
     },
     "json-stringify-safe": {
@@ -1980,7 +1943,7 @@
     },
     "jstransformer": {
       "version": "1.0.0",
-      "resolved": "http://r.cnpmjs.org/jstransformer/download/jstransformer-1.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/jstransformer/-/jstransformer-1.0.0.tgz",
       "integrity": "sha1-7Yvwkh4vPx7U1cGkT2hwntJHIsM=",
       "requires": {
         "is-promise": "^2.0.0",
@@ -2004,6 +1967,7 @@
       "version": "3.2.2",
       "resolved": "http://r.cnpmjs.org/kind-of/download/kind-of-3.2.2.tgz",
       "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
+      "dev": true,
       "requires": {
         "is-buffer": "^1.1.5"
       }
@@ -2198,20 +2162,10 @@
         "package-json": "^4.0.0"
       }
     },
-    "lazy-cache": {
-      "version": "1.0.4",
-      "resolved": "http://r.cnpmjs.org/lazy-cache/download/lazy-cache-1.0.4.tgz",
-      "integrity": "sha1-odePw6UEdMuAhF07O24dpJpEbo4="
-    },
     "lodash": {
-      "version": "4.17.15",
-      "resolved": "http://r.cnpmjs.org/lodash/download/lodash-4.17.15.tgz",
-      "integrity": "sha1-tEf2ZwoEVbv+7dETku/zMOoJdUg="
-    },
-    "longest": {
-      "version": "1.0.1",
-      "resolved": "http://r.cnpmjs.org/longest/download/longest-1.0.1.tgz",
-      "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc="
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
     "lowercase-keys": {
       "version": "1.0.1",
@@ -2667,8 +2621,8 @@
     },
     "path-parse": {
       "version": "1.0.6",
-      "resolved": "http://r.cnpmjs.org/path-parse/download/path-parse-1.0.6.tgz",
-      "integrity": "sha1-1i27VnlAXXLEc37FhgDp3c8G0kw="
+      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.6.tgz",
+      "integrity": "sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw=="
     },
     "path-to-regexp": {
       "version": "1.8.0",
@@ -2710,8 +2664,8 @@
     },
     "promise": {
       "version": "7.3.1",
-      "resolved": "http://r.cnpmjs.org/promise/download/promise-7.3.1.tgz",
-      "integrity": "sha1-BktyYCsY+Q8pGSuLG8QY/9Hr078=",
+      "resolved": "https://registry.npmjs.org/promise/-/promise-7.3.1.tgz",
+      "integrity": "sha512-nolQXZ/4L+bP/UGlkfaIujX9BKxGwmQ9OT4mOt5yvy8iK1h3wqTEJCijzGANTCCl9nWjY41juyAn2K3Q1hLLTg==",
       "requires": {
         "asap": "~2.0.3"
       }
@@ -2729,146 +2683,116 @@
       "dev": true
     },
     "pug": {
-      "version": "2.0.4",
-      "resolved": "http://r.cnpmjs.org/pug/download/pug-2.0.4.tgz",
-      "integrity": "sha1-7naC7ApgSUs41IqI8F87CskxN30=",
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/pug/-/pug-3.0.1.tgz",
+      "integrity": "sha512-9v1o2yXMfSKJy2PykKyWUhpgx9Pf9D/UlPgIs2pTTxR6DQZ0oivy4I9f8PlWXRY4sjIhDU4TMJ7hQmYnNJc2bw==",
       "requires": {
-        "pug-code-gen": "^2.0.2",
-        "pug-filters": "^3.1.1",
-        "pug-lexer": "^4.1.0",
-        "pug-linker": "^3.0.6",
-        "pug-load": "^2.0.12",
-        "pug-parser": "^5.0.1",
-        "pug-runtime": "^2.0.5",
-        "pug-strip-comments": "^1.0.4"
+        "pug-code-gen": "^3.0.2",
+        "pug-filters": "^4.0.0",
+        "pug-lexer": "^5.0.0",
+        "pug-linker": "^4.0.0",
+        "pug-load": "^3.0.0",
+        "pug-parser": "^6.0.0",
+        "pug-runtime": "^3.0.0",
+        "pug-strip-comments": "^2.0.0"
       }
     },
     "pug-attrs": {
-      "version": "2.0.4",
-      "resolved": "http://r.cnpmjs.org/pug-attrs/download/pug-attrs-2.0.4.tgz",
-      "integrity": "sha1-svRMQ55OtK1dTvJcrCDRitKMwzY=",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/pug-attrs/-/pug-attrs-3.0.0.tgz",
+      "integrity": "sha512-azINV9dUtzPMFQktvTXciNAfAuVh/L/JCl0vtPCwvOA21uZrC08K/UnmrL+SXGEVc1FwzjW62+xw5S/uaLj6cA==",
       "requires": {
-        "constantinople": "^3.0.1",
-        "js-stringify": "^1.0.1",
-        "pug-runtime": "^2.0.5"
+        "constantinople": "^4.0.1",
+        "js-stringify": "^1.0.2",
+        "pug-runtime": "^3.0.0"
       }
     },
     "pug-code-gen": {
-      "version": "2.0.2",
-      "resolved": "http://r.cnpmjs.org/pug-code-gen/download/pug-code-gen-2.0.2.tgz",
-      "integrity": "sha1-rQlnFirqB33PeHg42U7RSssCF8I=",
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/pug-code-gen/-/pug-code-gen-3.0.2.tgz",
+      "integrity": "sha512-nJMhW16MbiGRiyR4miDTQMRWDgKplnHyeLvioEJYbk1RsPI3FuA3saEP8uwnTb2nTJEKBU90NFVWJBk4OU5qyg==",
       "requires": {
-        "constantinople": "^3.1.2",
+        "constantinople": "^4.0.1",
         "doctypes": "^1.1.0",
-        "js-stringify": "^1.0.1",
-        "pug-attrs": "^2.0.4",
-        "pug-error": "^1.3.3",
-        "pug-runtime": "^2.0.5",
-        "void-elements": "^2.0.1",
-        "with": "^5.0.0"
+        "js-stringify": "^1.0.2",
+        "pug-attrs": "^3.0.0",
+        "pug-error": "^2.0.0",
+        "pug-runtime": "^3.0.0",
+        "void-elements": "^3.1.0",
+        "with": "^7.0.0"
       }
     },
     "pug-error": {
-      "version": "1.3.3",
-      "resolved": "http://r.cnpmjs.org/pug-error/download/pug-error-1.3.3.tgz",
-      "integrity": "sha1-80L7AIdS1YA0wYXeA2At2f/hX6Y="
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/pug-error/-/pug-error-2.0.0.tgz",
+      "integrity": "sha512-sjiUsi9M4RAGHktC1drQfCr5C5eriu24Lfbt4s+7SykztEOwVZtbFk1RRq0tzLxcMxMYTBR+zMQaG07J/btayQ=="
     },
     "pug-filters": {
-      "version": "3.1.1",
-      "resolved": "http://r.cnpmjs.org/pug-filters/download/pug-filters-3.1.1.tgz",
-      "integrity": "sha1-qyzILbnuzPV4vaiRMOJSoNsCaqc=",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/pug-filters/-/pug-filters-4.0.0.tgz",
+      "integrity": "sha512-yeNFtq5Yxmfz0f9z2rMXGw/8/4i1cCFecw/Q7+D0V2DdtII5UvqE12VaZ2AY7ri6o5RNXiweGH79OCq+2RQU4A==",
       "requires": {
-        "clean-css": "^4.1.11",
-        "constantinople": "^3.0.1",
+        "constantinople": "^4.0.1",
         "jstransformer": "1.0.0",
-        "pug-error": "^1.3.3",
-        "pug-walk": "^1.1.8",
-        "resolve": "^1.1.6",
-        "uglify-js": "^2.6.1"
-      },
-      "dependencies": {
-        "source-map": {
-          "version": "0.5.7",
-          "resolved": "http://r.cnpmjs.org/source-map/download/source-map-0.5.7.tgz",
-          "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w="
-        },
-        "uglify-js": {
-          "version": "2.8.29",
-          "resolved": "http://r.cnpmjs.org/uglify-js/download/uglify-js-2.8.29.tgz",
-          "integrity": "sha1-KcVzMUgFe7Th913zW3qcty5qWd0=",
-          "requires": {
-            "source-map": "~0.5.1",
-            "uglify-to-browserify": "~1.0.0",
-            "yargs": "~3.10.0"
-          }
-        },
-        "yargs": {
-          "version": "3.10.0",
-          "resolved": "http://r.cnpmjs.org/yargs/download/yargs-3.10.0.tgz",
-          "integrity": "sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=",
-          "requires": {
-            "camelcase": "^1.0.2",
-            "cliui": "^2.1.0",
-            "decamelize": "^1.0.0",
-            "window-size": "0.1.0"
-          }
-        }
+        "pug-error": "^2.0.0",
+        "pug-walk": "^2.0.0",
+        "resolve": "^1.15.1"
       }
     },
     "pug-lexer": {
-      "version": "4.1.0",
-      "resolved": "http://r.cnpmjs.org/pug-lexer/download/pug-lexer-4.1.0.tgz",
-      "integrity": "sha1-UxzeSMfAsfy7wrhUhchmXjFInP0=",
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/pug-lexer/-/pug-lexer-5.0.1.tgz",
+      "integrity": "sha512-0I6C62+keXlZPZkOJeVam9aBLVP2EnbeDw3An+k0/QlqdwH6rv8284nko14Na7c0TtqtogfWXcRoFE4O4Ff20w==",
       "requires": {
-        "character-parser": "^2.1.1",
-        "is-expression": "^3.0.0",
-        "pug-error": "^1.3.3"
+        "character-parser": "^2.2.0",
+        "is-expression": "^4.0.0",
+        "pug-error": "^2.0.0"
       }
     },
     "pug-linker": {
-      "version": "3.0.6",
-      "resolved": "http://r.cnpmjs.org/pug-linker/download/pug-linker-3.0.6.tgz",
-      "integrity": "sha1-9b8hiw79Zc5mcPevxRZY0Pgpifs=",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/pug-linker/-/pug-linker-4.0.0.tgz",
+      "integrity": "sha512-gjD1yzp0yxbQqnzBAdlhbgoJL5qIFJw78juN1NpTLt/mfPJ5VgC4BvkoD3G23qKzJtIIXBbcCt6FioLSFLOHdw==",
       "requires": {
-        "pug-error": "^1.3.3",
-        "pug-walk": "^1.1.8"
+        "pug-error": "^2.0.0",
+        "pug-walk": "^2.0.0"
       }
     },
     "pug-load": {
-      "version": "2.0.12",
-      "resolved": "http://r.cnpmjs.org/pug-load/download/pug-load-2.0.12.tgz",
-      "integrity": "sha1-04yF64X24vcE3qFNzKlBRNNdPns=",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/pug-load/-/pug-load-3.0.0.tgz",
+      "integrity": "sha512-OCjTEnhLWZBvS4zni/WUMjH2YSUosnsmjGBB1An7CsKQarYSWQ0GCVyd4eQPMFJqZ8w9xgs01QdiZXKVjk92EQ==",
       "requires": {
-        "object-assign": "^4.1.0",
-        "pug-walk": "^1.1.8"
+        "object-assign": "^4.1.1",
+        "pug-walk": "^2.0.0"
       }
     },
     "pug-parser": {
-      "version": "5.0.1",
-      "resolved": "http://r.cnpmjs.org/pug-parser/download/pug-parser-5.0.1.tgz",
-      "integrity": "sha1-A+etpItoQL04Ivhn19kPhC0P/ck=",
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/pug-parser/-/pug-parser-6.0.0.tgz",
+      "integrity": "sha512-ukiYM/9cH6Cml+AOl5kETtM9NR3WulyVP2y4HOU45DyMim1IeP/OOiyEWRr6qk5I5klpsBnbuHpwKmTx6WURnw==",
       "requires": {
-        "pug-error": "^1.3.3",
-        "token-stream": "0.0.1"
+        "pug-error": "^2.0.0",
+        "token-stream": "1.0.0"
       }
     },
     "pug-runtime": {
-      "version": "2.0.5",
-      "resolved": "http://r.cnpmjs.org/pug-runtime/download/pug-runtime-2.0.5.tgz",
-      "integrity": "sha1-baeXbDa/IvaOczw1kkDYrnoylTo="
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/pug-runtime/-/pug-runtime-3.0.1.tgz",
+      "integrity": "sha512-L50zbvrQ35TkpHwv0G6aLSuueDRwc/97XdY8kL3tOT0FmhgG7UypU3VztfV/LATAvmUfYi4wNxSajhSAeNN+Kg=="
     },
     "pug-strip-comments": {
-      "version": "1.0.4",
-      "resolved": "http://r.cnpmjs.org/pug-strip-comments/download/pug-strip-comments-1.0.4.tgz",
-      "integrity": "sha1-zBtt4fbo9ZMc8C7GbN/9P1Dq+Kg=",
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/pug-strip-comments/-/pug-strip-comments-2.0.0.tgz",
+      "integrity": "sha512-zo8DsDpH7eTkPHCXFeAk1xZXJbyoTfdPlNR0bK7rpOMuhBYb0f5qUVCO1xlsitYd3w5FQTK7zpNVKb3rZoUrrQ==",
       "requires": {
-        "pug-error": "^1.3.3"
+        "pug-error": "^2.0.0"
       }
     },
     "pug-walk": {
-      "version": "1.1.8",
-      "resolved": "http://r.cnpmjs.org/pug-walk/download/pug-walk-1.1.8.tgz",
-      "integrity": "sha1-tAj2fyeRL4wh2i9FtyMMS9Kl6no="
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/pug-walk/-/pug-walk-2.0.0.tgz",
+      "integrity": "sha512-yYELe9Q5q9IQhuvqsZNwA5hfPkMJ8u92bQLIMcsMxf/VADjNtEYptU+inlufAFYcWdHlwNfZOEnOOQrZrcyJCQ=="
     },
     "qs": {
       "version": "4.0.0",
@@ -2930,11 +2854,6 @@
         "readable-stream": "^2.0.2"
       }
     },
-    "regenerator-runtime": {
-      "version": "0.11.1",
-      "resolved": "http://r.cnpmjs.org/regenerator-runtime/download/regenerator-runtime-0.11.1.tgz",
-      "integrity": "sha1-vgWtf5v30i4Fb5cmzuUBf78Z4uk="
-    },
     "regex-not": {
       "version": "1.0.2",
       "resolved": "http://r.cnpmjs.org/regex-not/download/regex-not-1.0.2.tgz",
@@ -2984,7 +2903,8 @@
     "repeat-string": {
       "version": "1.6.1",
       "resolved": "http://r.cnpmjs.org/repeat-string/download/repeat-string-1.6.1.tgz",
-      "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc="
+      "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc=",
+      "dev": true
     },
     "require_optional": {
       "version": "1.0.1",
@@ -2996,10 +2916,11 @@
       }
     },
     "resolve": {
-      "version": "1.13.1",
-      "resolved": "http://r.cnpmjs.org/resolve/download/resolve-1.13.1.tgz",
-      "integrity": "sha1-vgqkwGrNUwg1BauzX01mkyqzXRY=",
+      "version": "1.20.0",
+      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.20.0.tgz",
+      "integrity": "sha512-wENBPt4ySzg4ybFQW2TT1zMQucPK95HSh/nq2CFTZVOGut2+pQvSsgtda4d26YrYcr067wjbmzOG8byDPBX63A==",
       "requires": {
+        "is-core-module": "^2.2.0",
         "path-parse": "^1.0.6"
       }
     },
@@ -3052,14 +2973,6 @@
       "integrity": "sha1-uKSCXVvbH8P29Twrwz+BOIaBx7w=",
       "dev": true
     },
-    "right-align": {
-      "version": "0.1.3",
-      "resolved": "http://r.cnpmjs.org/right-align/download/right-align-0.1.3.tgz",
-      "integrity": "sha1-YTObci/mo1FWiSENJOFMlhSGE+8=",
-      "requires": {
-        "align-text": "^0.1.1"
-      }
-    },
     "safe-buffer": {
       "version": "5.1.2",
       "resolved": "http://r.cnpmjs.org/safe-buffer/download/safe-buffer-5.1.2.tgz",
@@ -3445,9 +3358,9 @@
       "dev": true
     },
     "to-fast-properties": {
-      "version": "1.0.3",
-      "resolved": "http://r.cnpmjs.org/to-fast-properties/download/to-fast-properties-1.0.3.tgz",
-      "integrity": "sha1-uDVx+k2MJbguIxsG46MFXeTKGkc="
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",
+      "integrity": "sha1-3F5pjL0HkmW8c+A3doGk5Og/YW4="
     },
     "to-object-path": {
       "version": "0.3.0",
@@ -3486,9 +3399,9 @@
       "integrity": "sha1-fhvjRw8ed5SLxD2Uo8j013UrpVM="
     },
     "token-stream": {
-      "version": "0.0.1",
-      "resolved": "http://r.cnpmjs.org/token-stream/download/token-stream-0.0.1.tgz",
-      "integrity": "sha1-zu78cXp2xDFvEm0LnbqlXX598Bo="
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/token-stream/-/token-stream-1.0.0.tgz",
+      "integrity": "sha1-zCAOqyYT9BZtJ/+a/HylbUnfbrQ="
     },
     "touch": {
       "version": "3.1.0",
@@ -3702,9 +3615,9 @@
       "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
     },
     "void-elements": {
-      "version": "2.0.1",
-      "resolved": "http://r.cnpmjs.org/void-elements/download/void-elements-2.0.1.tgz",
-      "integrity": "sha1-wGavtYK7HLQSjWDqkjkulNXp2+w="
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/void-elements/-/void-elements-3.1.0.tgz",
+      "integrity": "sha1-YU9/v42AHwu18GYfWy9XhXUOTwk="
     },
     "which": {
       "version": "1.3.1",
@@ -3730,12 +3643,14 @@
       "integrity": "sha1-VDjNLqk7IC76Ohn+iIeu58lPnJ0="
     },
     "with": {
-      "version": "5.1.1",
-      "resolved": "http://r.cnpmjs.org/with/download/with-5.1.1.tgz",
-      "integrity": "sha1-+k2qktrzLE6pTtRTyB8EaGtXXf4=",
-      "requires": {
-        "acorn": "^3.1.0",
-        "acorn-globals": "^3.0.0"
+      "version": "7.0.2",
+      "resolved": "https://registry.npmjs.org/with/-/with-7.0.2.tgz",
+      "integrity": "sha512-RNGKj82nUPg3g5ygxkQl0R937xLyho1J24ItRCBTr/m1YnZkzJy1hUiHUJrc/VlsDQzsCnInEGSg3bci0Lmd4w==",
+      "requires": {
+        "@babel/parser": "^7.9.6",
+        "@babel/types": "^7.9.6",
+        "assert-never": "^1.2.1",
+        "babel-walk": "3.0.0-canary-5"
       }
     },
     "wordwrap": {
diff --git a/package.json b/package.json
index ab5a806..710431e 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "koa-static": "^3.0.0",
     "koa-views": "^5.2.1",
     "mongoose": "^5.8.1",
-    "pug": "^2.0.0-rc.1"
+    "pug": "^3.0.1"
   },
   "devDependencies": {
     "nodemon": "^1.8.1"