* Drop support for Django<1.6 and DjangoCMS<3.0;
* Add support for Django>=1.6 and DjangoCMS>=3.0;
* Remove past migrations that are not compatible with DjangoCMS>=3.0;
* Add django-filer usage to manage files in models;
* Add easy-thumbnails usage instead of sorl.thumbnails;
* bump to 0.9;
Merge django_1-6 branch, bump to 0.9