change exercise Id format to avoid excel treat it as a date refs BT#7301
show only visible exercises refs BT#7298
check if user is also course_coach to allow exercise qualification refs BT#7316
teacher progress report by course
missing space in query
Merge branch '1.9.x' of https://github.com/FraGoTe/chamilo-lms-utp into 1.9.x
seguimiento d eleccions refs #7315
Merge branch '1.9.x' of github.com:beeznest/chamilo-lms-utp into 1.9.x