use userena as signin signup package
set homepage to signin page
direct user to signin; add custom signin form
user signup is ok now
redirect to account page after successfully signed up.
Merge branch 'master' into admin

Conflicts:
	social_secretary/settings.py
	social_secretary/ss_app/models.py
	social_secretary/ss_app/views.py
	social_secretary/urls.py
small cleanups
Merge pull request #12 from galarant/admin

Admin