first commit, branch with gruppi di studio
Added subscription to "gruppodistudio", started forum implementation
Implementation of InterActivities customCommunication and forum tab
simple version
fix minor bugs
last update
oauth
fix model Studenti 
feedback and course information done
fix connection problem
average ratings for every aspects
fix
add rating done!!!
fix add rate
enabled navigation from actionbar;
added wizard to create new attivitàstudio;
added wizard to insert an attachment;
minor bugs fixed;
new functionality rating
fix
fix
Merge remote-tracking branch 'origin/gruppi_studio' into aac

Conflicts:
	res/values/strings.xml
fix layout
fix PHL, todo check fragment transaction (lv folder)
last commit on branch gruppi_studio