fix some bugs
better header
Groups beginning
post on groups
add new post in group
comments in groups
list the groups
fix rendering
groups in user menu
most of the add user to group logic
view users in a group
Secret and private group model
user not added if already in group
When a user create a group, he's automatically added to it
show group in list only if not secret
visibility for secret and private
nice message if no post
if not logged in, create group in index redirect to sign_in
fix document.ready error
really fixing the document.ready issue