fix(ci): Update jsdocs and gh-pages.

Author: colin-welch

package.json

@@ -51,8 +51,8 @@
   "devDependencies": {
     "docdash": "^0.4.0",
     "eslint": "4.18.2",
-    "gh-pages": "^2.0.1",
-    "jsdoc": "^3.5.5",
+    "gh-pages": "^3.1.0",
+    "jsdoc": "^3.6.6",
     "marked": "^0.3.9",
     "prettier": "^1.3.1",
     "repl": "0.1.3",