Implemented the interface part of the Rating in a session;
changed/created some data structures to implement rating as a float (was as int before) in event, session and iconfs;
added 2 lines of code inside the tableview in menuviewcontroller so that each time it is called (button pressed in menu) it updates the info of the theAppData and confs structures to the most recent one on disk;
changed the name of the notification timer in the lateral menu interface to update so as to refer to it updating more than just notifications.