Added django-openid-auth to requirements
Basic open auth setup (with gmail accounts, need to switch to kontagent only accounts)
auth: Added logout capability
auth: Added flash messages for logging in and out
Merge branch 'master' of github.com:asvoboda/kt-cc

Conflicts:
	challenge/main/views.py
	challenge/urls.py
	requirements.txt
auth: Cleaned up check for user being logged in in base.html
auth: Made login redirect back to previous page