Add Releaf::Attachment model and Releaf::RichtextAttachment module
Cleanup css
Progress on attachment upload
Use uuid as primary key for attachmetns
Get rid of attachment controller
Add translations
Fix typo
Fix typo
Delete tinymce assets controller and get rid of imageupload plugin
Merge branch 'master' into attachments

Conflicts:
	app/assets/javascripts/releaf/include/field.type_richtext.js
	app/models/releaf/role.rb
Ignore .ruby-version and .ruby-gemset
Add title field to attachment and refactor (a little) new_attachment.html.haml
Add translations
Fix issues with checkbox filters in index views
Merge branch 'attachments'

Conflicts:
	lib/generators/dummy/templates/models/book.rb