Full support for private communities
Merged master
Merge pull request #246 from sharetribe/private-community

Full support for private marketplaces
Fixed a bug that caused invite only to get turned off when admins modified community settings
Fixed a bug in editing private homepage content
New translations
Improved copys in some translations
Create TransactionType and its translations and linking to Category
Add subclasses for TransactionType + add some validations
Merge branch 'master' into category-migration

Conflicts:
	db/schema.rb
Merge commit