Update browserify

Also update bundle.transform call site, which now takes options
Update other dependencies
Upgrade (explicitly) grunt

They deprecated the use of some packaged modules and suggest using those modules
directly. http://gruntjs.com/blog/2013-11-21-grunt-0.4.2-released

Lodash was the only use we had.
Merge pull request #924 from zpao/update-deps

Update build dependencies