Added community_id to category
Removed validations from Category name
Removed ability to post a listing to multiple marketplaces at once
Basic category list on admin page
Merge commit
Tests for viewing category list
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
Admin can now add a new category
Merge commit
Some translations
Categories can be assigned a parent category when creating them
Foundations for big category migration (not finished)
Editing categories
Merge branch 'master' into category-ui
Moved data from fixtures to factory girl
Testing replacing fixtures with factories (tests not passing)
Loading categories to db in the same way than other things previously in fixtures
Specs work (aside from API specs).