Merge pull request #107 from benadida/issue-106-clever-auth

.gitignore

helios/security.py

helios_auth/auth_systems/__init__.py

helios_auth/auth_systems/cas.py

helios_auth/auth_systems/clever.py

helios_auth/auth_systems/facebook.py

helios_auth/auth_systems/google.py

helios_auth/auth_systems/linkedin.py

helios_auth/auth_systems/live.py

helios_auth/auth_systems/password.py

helios_auth/auth_systems/twitter.py

helios_auth/auth_systems/yahoo.py

helios_auth/media/login-icons/clever.png

helios_auth/models.py

helios_auth/templates/login_box.html

helios_auth/tests.py

requirements.txt

settings.py