System - Notification - Updated patch

The notification system has been improved to show various notifications
at the same time in index.html
qubal_prerender.py -> now gets 1 parameter instead 2 (actions_list)
qubal_rules -> 'if' condition included to control that the user is loged
only once (if press f5/refresh doesn't work anymore as before)
index.html -> div class=notification - span5 included to avoid
truncation
notifications.inc -> for loop has been included to read more than one
notification.
views.py -> Now we get all the actor actions and save them in a var to
pass it to the function(prerender_notifications)