Adds missing Django 1.7 migration
Changed __unicode__ to __str__

Addresses same issue as https://github.com/divio/djangocms-text-ckeditor/pull/175
Merge pull request #22 from briandant/master

Adds missing Django 1.7 migration
Merge pull request #25 from GreenLightGo/patch-1

Changed __unicode__ to __str__