[client] Academia models entities
[server] non-default serializer serverside which enables reverse relations (with planty modifications)
[server] subjects list api command
[server] activities list and activities list by subject
[server] wiser notes list api command
[server] urls for subject* and activity* api commands
[server] tmp file removed
[client] Activities unmess; MainActivity redirects to ConnectActivity if connection data isn't stored, alse it redirects to SubjectActivity; Subject activity calls command which shall be implemented, but does nothing with results (does not display it); PadActivity not accessible for now
[server] unused class removed
[client] base API commands classes
[client] just some starter to implement client authentication
[client] api AktivityLisbBySubject (doesn't work since not authenticated)
[client] api NoteGet (doesn't work since not authenticated)
[client] api NoteList (doesn't work since not authenticated)
[client] api NoteListBySubjectByActivity (doesn't work since not authenticated)
[client] api SubjectList (doesn't work since not authenticated)
[client] adjustments in XMLs