Move browserify task to gulp

package.json

@@ -9,7 +9,7 @@
     "async": "~0.9.0",
     "aws-sdk": "^2.0.25",
     "babel": "^5.5.4",
-    "gulp-babel": "^5.2.1",
+    "babelify": "^7.2.0",
     "bower": "~1.3.12",
     "browserify": "~12.0.1",
     "coffee-script": "1.6.x",
@@ -23,7 +23,6 @@
     "firebase-token-generator": "^2.0.0",
     "glob": "^4.3.5",
     "grunt": "~0.4.1",
-    "grunt-browserify": "^3.3.0",
     "grunt-cli": "~0.1.9",
     "grunt-contrib-clean": "~0.6.0",
     "grunt-contrib-copy": "~0.6.0",
@@ -38,6 +37,8 @@
     "gulp-grunt": "^0.5.2",
     "gulp-imagemin": "^2.3.0",
     "gulp-nodemon": "^2.0.4",
+    "gulp-sourcemaps": "^1.6.0",
+    "gulp-uglify": "^1.4.2",
     "gulp.spritesmith": "^4.1.0",
     "icalendar": "lefnire/node-icalendar#e06da0e55901f0ba940dfadc42c158ed0b1fead9",
     "image-size": "~0.3.2",
@@ -75,6 +76,8 @@
     "swagger-node-express": "lefnire/swagger-node-express#habitrpg",
     "universal-analytics": "~0.3.2",
     "validator": "~3.19.0",
+    "vinyl-buffer": "^1.0.0",
+    "vinyl-source-stream": "^1.1.0",
     "winston": "~0.8.0",
     "winston-mail": "~0.2.9",
     "winston-newrelic": "~0.1.4"