Remove unused packages such as gulp-* since we are using webpack.

package.json

@@ -21,22 +21,6 @@
     "event-stream": "3.2.1",
     "extract-text-webpack-plugin": "1.0.1",
     "file-loader": "^0.8.5",
-    "gulp": "3.8.11",
-    "gulp-angular-templatecache": "1.5.0",
-    "gulp-concat": "2.4.3",
-    "gulp-connect": "2.2.0",
-    "gulp-git": "1.1.0",
-    "gulp-less": "3.0.1",
-    "gulp-load-plugins": "0.8.0",
-    "gulp-ng-annotate": "0.5.2",
-    "gulp-notify": "2.1.0",
-    "gulp-plumber": "0.6.6",
-    "gulp-size": "1.2.0",
-    "gulp-sourcemaps": "1.5.0",
-    "gulp-symlink": "2.1.0",
-    "gulp-tslint": "1.4.3",
-    "gulp-typescript": "2.4.2",
-    "gulp-watch": "3.0.0",
     "imports-loader": "^0.6.5",
     "jquery": "2.1.4",
     "less": "2.6.1",
@@ -50,16 +34,12 @@
     "sass": "^0.5.0",
     "sass-loader": "^3.2.0",
     "style-loader": "^0.13.0",
-    "through2": "0.6.3",
     "ts-loader": "0.8.1",
     "tslint": "3.6.0",
     "tslint-loader": "2.1.1",
     "typescript": "1.8.9",
     "ui-router": "^1.0.0-alpha0",
-    "underscore.string": "2.4.0",
-    "vinyl-map": "1.0.1",
     "webpack": "1.12.14",
-    "which": "1.0.8",
     "wiredep": "^4.0.0"
   }
 }