Fix bug when using direct link with custom pages - refs CT#7371
Desactivate profile editing with SSO - refs BT#9021
Fix bug My agenda breadcrumb url  - refs CT#7396
Fix bug for change visibility action from personal agenda - refs CT#7381
Fix bug gradebook category action  missing cidReq param - refs CT#7395
Minor - Code style - refs CT#7395
Fix to feature that hides the logout button - refs BT#9029
Merge pull request #426 from AngelFQC/9021

Desactivate profile editing with SSO - refs BT#9021
Minor - format code.
Adding flash messages see BT#9016

Just add messages using for example:
Display::addFlash(Display::return_message(get_lang('Save'), 'warning'));

Chamilo will show the message and delete it from the session.
So the message will not be shown twice.
Minor - format code.
Only look for completed attempts status = ''.
Hiding actions column when lp_show_reduced_report = true see BT#8902
Adding feedback notifications see BT#9017
Minor - format code.
Hide export pdf, not ready yet.
Adding chat.css see BT#8884
Removing $_COOKIE['TestCookie'] validation see BT#7355
Removing TestCookie see BT#7355
Restoring pdf (wrongly commented).