move minify-stream a from deps -> dev-deps

Author: etpinard

package-lock.json

@@ -86,7 +86,6 @@
     "kdgrass": "^1.0.1",
     "mapbox-gl": "^0.22.0",
     "matrix-camera-controller": "^2.1.3",
-    "minify-stream": "^1.1.0",
     "mouse-change": "^1.4.0",
     "mouse-event-offset": "^3.0.2",
     "mouse-wheel": "^1.0.2",
@@ -138,6 +137,7 @@
     "karma-spec-reporter": "0.0.32",
     "karma-verbose-reporter": "0.0.6",
     "madge": "^3.0.0",
+    "minify-stream": "^1.1.0",
     "minimist": "^1.2.0",
     "node-sass": "^4.7.2",
     "npm-link-check": "^2.0.0",