Cleaning up the code a lil'
Not much to see, move along…

- Foxy error pages with better_errors gem!
- Updated bundle along with Rails (to v3.2.11)
- Use UJS in recipes.js.coffee
- Added `rails server` as a web worker to Procfile*
Added hierarchical Category model (powered by closure_tree gem)
Merge branch 'master' into categories

Conflicts:
	Gemfile
	Gemfile.lock