close communities when user is banned
Move member management to CommunityMembershipsCtrl

- Move from Admin::CommunitiesController to
  Admin::CommunityMembershipsController
feature: when banning a person, check that his/hers listings are closed
Require CSS by folders, not individually
Remove unused hidden classes
Merge pull request #500 from sharetribe/require-tree

Require CSS by folders, not individually
Fix broken unsubscribe link
Fix rspec
Merge pull request #503 from sharetribe/unsubscribe

Fix broken unsubscribe link
added a comment about paperclip (makes it easier to find stuff)
Preauthorize form improvements
Automatic confirmation for preauthorized payments
Login helper cleanup
Add tests for missing payment details with preauth
ParamsConstraints
Remove duplicated Braintree code
removed one inverse_of which seemd to cause loop in rails callbacks
Less margin after details header
Marketplace customization options doc
Old community creation view code cleanup