Makes browserify a dev dependency.

Makefile

-BROWSERIFY = browserify
+BROWSERIFY = ./node_modules/.bin/browserify
 DEPLOY_DIR = libs
 GLOBAL_FLAGS = -x jquery -e
 NPM = npm

package.json

   },
   "devDependencies": {
       "precommit-hook": "3.0.0",
-      "uglify-js": "2.4.24"
+      "uglify-js": "2.4.24",
+      "browserify": "11.1.x"
   },
   "license": "Apache-2.0",
   "scripts": {