- Changed name of "listStudentMB" to "StudentListMB" to respect the
overall way of writting
- Lot of graphical changes
- Fixed the filter pb (except all filter of exam which is not really
necessary i think)
- fixed upcoming/previous display of exams in both index
- Exams displayed now depend of the person connected (teacher/student)
and if he is related to it
- Added table linking Students to an exam
- Modified Exam table in DB, adding eIsCorrected (TINYINT(1)) field to
know if an exam is corrected or not