Modify the btn-group partial for new Restaurant preferences to HAML
Fix (subtle) order-dependent bug in Specs

 - If the PreferencesController spec was run before the RestaurantsController
   then the #likes and #dislikes actions' specs would fail
Remove debug messages
Merge pull request #18 from errinlarsen/convert_pref_btn_group_partial_to_haml

Convert pref btn group partial to haml