Update dependencies

Update dependencies

Author: pascalduez

package.json

@@ -25,15 +25,15 @@
     "6to5-runtime": "^3.2.1",
     "chroma-js": "^0.6.3",
     "es6-denodeify": "^0.1.0",
-    "extend": "^1.0.0",
+    "extend": "^2.0.0",
     "fs-extra": "^0.16.3",
-    "html-minifier": "^0.6.9",
+    "html-minifier": "^0.7.0",
     "sassdoc-extras": "^2.1.0",
     "swig": "1.4.0",
     "swig-extras": "^0.0.1"
   },
   "devDependencies": {
-    "6to5": "^3.2.1",
+    "6to5": "^3.6.0",
     "jshint": "^2.6.0",
     "uglify-js": "^2.4.15"
   }