wsgi path
fix ALLOWED_HOSTS
enable admin
piston 0.2.3
Revert "piston 0.2.3"

This reverts commit 1c880a75ed2021e9bcff8ccb1226015f4c7d8f14.
hack to make API CSRF exempt
actually make exempt
kill piston and unused backends
voicemail sms handling is not a thing anymore
Merge branch 'feature/issue-11-kill-piston' into develop
Merge branch 'develop' into feature/issue-10-upgrade-to-django-1.6

Conflicts:
	txtalert/apps/api/tests.py
	txtalert/apps/api/urls.py