v1.1.0

• Upgraded to django-smart-media>=0.3.0 to fix plugin form layout on file inputs,
  close #20;
• Cleaned Sass sources from old useless fileinput sources;
• Updated PO and MO files, added missing blank locale for 'en';
• Fixed plugin form to use the proper features field label;
• Removed all signal receiver auto_purge_files_on_change usage from all plugins to
  remove a misbehavior with file purge and page publication. This means files related
  to deleted plugin won't be automatically removed anymore, close #22;