[translate]: Added (not yet fully tested) language-owner merging capability
[translate]: Fixed bug. Merges weren't being saved properly. They now should be.
[translate]: Removed most remaining old ownership methods. Several things still require being updated to the new system, including Publishing and Security.
[translate]: API serve and serve_list updated to the lownership system
[translate]: Changed serve_list format
[translate]: Minor changes. Added link to select2 css. Etc.
[translate]: Now the key of the appvar itself is 'ownership' and not 'lownership'.
[translate]: Minor refactoring. Improved error handlings
[translate]: Added Shindig translation button to the edit screen
Merge branch 'master' of github.com:/porduna/appcomposer into granular_ownership