Add npm script to use local files (for electron or cordova)

This copies useless files as well, I'm not sure what's the best
way to deal with that.

bower.json

@@ -12,6 +12,8 @@
     "angular-touch": "1.4.x",
     "angular-loader": "1.4.x",
     "angular-mocks": "1.4.x",
-    "html5-boilerplate": "~4.3.0"
+    "html5-boilerplate": "~4.3.0",
+    "underscore": "~1.7",
+    "bootstrap": "~3.1"
   }
 }

package.json

@@ -32,6 +32,7 @@
     "update-webdriver": "webdriver-manager update",
     "preprotractor": "npm run update-webdriver",
     "protractor": "protractor test/protractor-conf.js",
+    "use-local-files": "find bower_components \\( -name \"*min.js\" -o -name \"*min.css\" \\) -exec cp {} 3rdparty \\; ; cp -r bower_components/bootstrap/fonts . ; sed -i 's,https://cdnjs.cloudflare.com/ajax/libs/[^\"]*/,3rdparty/,g' index.html ; sed -i 's, integrity=\".*\" crossorigin=\"anonymous\",,' index.html",
     "build-electron-windows": "electron-packager . \"Glowing Bear\" --platform=win32 --arch=ia32 --version=0.37.2 --overwrite --icon=assets/img/favicon.ico --asar=true --version-string.FileDescription=\"Glowing Bear\" --ignore=node_modules --ignore=test",
     "build-electron-darwin": "electron-packager . \"Glowing Bear\" --platform=darwin --arch=x64 --version=0.37.3 --overwrite --icon=assets/img/glowing-bear.icns --version-string.FileDescription=\"Glowing Bear\" --ignore=node_modules --ignore=test",
     "build-electron-linux":  "electron-packager . \"Glowing Bear\" --platform=linux --arch=x64 --version=0.37.3 --overwrite --icon=assets/img/favicon.ico --version-string.FileDescription=\"Glowing Bear\" --ignore=node_modules --ignore=test",