deps - add gulp deps

package.json

@@ -25,8 +25,9 @@
     "xtend": "^4.0.1"
   },
   "devDependencies": {
-    "del": "^2.2.0",
     "browser-sync": "^2.11.1",
+    "browserify": "^13.0.0",
+    "del": "^2.2.0",
     "grunt": "~0.4.1",
     "grunt-browserify": "^4.0.0",
     "grunt-chrome-manifest": "~0.2.0",
@@ -44,10 +45,16 @@
     "grunt-usemin": "~2.1.0",
     "gulp": "github:gulpjs/gulp#4.0",
     "gulp-livereload": "^3.8.1",
+    "gulp-sourcemaps": "^1.6.0",
+    "gulp-util": "^3.0.7",
     "gulp-watch": "^4.3.5",
     "jshint-stylish": "~0.1.5",
     "load-grunt-tasks": "~0.4.0",
-    "time-grunt": "~0.3.1"
+    "lodash.assign": "^4.0.6",
+    "time-grunt": "~0.3.1",
+    "vinyl-buffer": "^1.0.0",
+    "vinyl-source-stream": "^1.1.0",
+    "watchify": "^3.7.0"
   },
   "engines": {
     "node": ">=0.8.0"