added letter opener gem
simple form and basic bootstrap 3 style for devise views
Merge branch 'feature/user_login' into develop

* feature/user_login:
  simple form and basic bootstrap 3 style for devise views
  added letter opener gem
Added festival resource with admin controller and routes
finished basic form and admin listing for festivals
updates to festivals admin form
Merge branch 'feature/add_admin_theme' into develop

* feature/add_admin_theme:
  updates to festivals admin form
  finished basic form and admin listing for festivals
  Added festival resource with admin controller and routes
finished basic root festival listing