minor changes

fixed profile picture binding (picture not showing on first add)
added required age and yearlevel on create new profile
changed name and school to must be atleast 3 characters long

merge

Changed Average Grades to Grades

cleaned all users

update documentation

update documentation

completed PracticalRunExerciseViewer

can now push / pull quizzes to and from the database

added new documentation

Merge branch 'master' of https://github.com/robertoguazon/Thesis-ITS