Redo profile view using WebViewJavascriptBridge and FastClick.

As a trial run for further use in the posts view and private message view.

* Render entire page objc-side, simply telling the web view to load some HTML.
* Reduce cleverness inside AwfulProfileViewModel.
* Delete awful.js's profile code.
* Delete "View Models" folder and Xcode group. Move AwfulProfileViewModel next
  to where it's used.
* Delete "Templates" folder and Xcode group. Move Profile.mustache next to
  where it's used.
* Include zepto.min.js as a resource as well as the concatenated combined.js.
* Use custom build of zepto.js with just the "zepto" and "event" modules.
  Mention this possibility in the README too.
* Use FastClick to eliminate click delay in web view. Previously we were using
  a UITapGestureRecognizer to achieve this, but (astoundingly) using JavaScript
  seems like the cleaner solution. Or at least more self-contained and less
  likely to interact poorly with other gesture recognizers.