Bug 1274054 - Move minimist from dependencies to devDependencies

Since it's only required when developing locally, so doesn't need to be
installed in production.

package.json

@@ -20,8 +20,7 @@
     "grunt-contrib-cssmin": "0.14.0",
     "grunt-contrib-uglify": "0.9.2",
     "grunt-usemin": "3.1.1",
-    "load-grunt-tasks": "3.2.0",
-    "minimist": "1.2.0"
+    "load-grunt-tasks": "3.2.0"
   },
   "devDependencies": {
     "eslint": "1.8.0",
@@ -33,7 +32,8 @@
     "karma-firefox-launcher": "0.1.6",
     "karma-jasmine": "0.3.6",
     "karma-junit-reporter": "0.3.4",
-    "karma-ng-scenario": "0.1.0"
+    "karma-ng-scenario": "0.1.0",
+    "minimist": "1.2.0"
   },
   "scripts": {
     "test": "karma start tests/ui/config/karma.conf.js --single-run --browsers Firefox"