Update setup.py

Make setup.py take into account the locale configuration.
Fix Django DateTimeField warning on migrations

When running unit tests against my django apps, I am tired of seeing the warning from actstream's internal migrations that say: `DateTimeField received a naive datetime (2013-05-06 18:08:44.244158) while time zone support is active.`. This change removes the warning by using a workaround needed for South v0.7.6.
Merge pull request #127 from artscoop/patch-1

Update setup.py to install locales
Merge pull request #139 from robbyt/master

fix south migration warnings
fixed app template path
adding missing action_object into action.html template
fixes #135
start of tox tests
missing runtests for tox testing
avoid re-contributing generic relation descriptor
fixes #117
typo. fixes #120
dropping actor signal args as it uses sender instead
fixes #126
Merge remote-tracking branch 'upstream/master' into feature/django-1.5