Use Django 1.7
Remove South from the project
Remove old South migrations
Add initial Django migration
Remove admin.autodiscover() instruction
Use nose-sfd 0.4 with Django 1.7 compatibility
Drop testing on Python 2.6
Use django-tagging 0.3.3 with Django 1.7 compatibility
Undefine LOCALE_PATHS and define BASE_DIR to lower the heuristic result for checking if the test runner is okay
Use lru_cache decorator
Use the skipUnless decorator from standard lib
Silent system check for django 1.6 new test runner
Add Application config for Zinnia
Documenta zinnia.apps
Set language map for Chinese and Serbian languages
Use new simplified chinese language code
Rename locale directory for zh_CN to zh_Hans
Migration for custom user
Do not declare the Author models in zinnia.models to avoid loading of this proxy models at django.setup(). The Author proxy model will be loaded on demand, like when loading zinnia.urls , close #342
Test migrations for Py2 & Py3