不足しているモジュールを依存関係に追加

.gitignore

@@ -1,6 +1,7 @@
 .DS_Store
 Thumbs.db
 
+/.sass-cache/
 /nbproject/private/
 /vendor/
 /wiki-data/cache/
@@ -18,4 +19,4 @@ coverage
 sandbox
 test/out-fixtures/*
 test/watch-*.txt
-gulp.1
+gulp.1

package.json

@@ -7,7 +7,10 @@
     "doc": "doc"
   },
   "devDependencies": {
+    "babel-preset-es2015": "^6.9.0",
+    "babelify": "^7.3.0",
     "browserify": "^13.*.*",
+    "browserify-shim": "^3.8.12",
     "del": "^2.2.*",
     "gulp": "^3.9.1",
     "gulp-bower": "0.0.*",