FIX: Force max quality star ratings to update on task change
FIX: Force max quality star ratings to update on task change

As per https://angular-ui.github.io/bootstrap/#/rating the max
value is not watched so we can't just provide a dynamic max star
rating value here.

Instead we can use an ng-if to force the element to be destroyed
when the max_quality_pts changes value, and then a $timeout to
force it to be created again.

doubtfire-lms/doubtfire-web,doubtfire-lms/doubtfire-web,final-year-project/doubtfire-web,doubtfire-lms/doubtfire-web,alexcu/doubtfire-web,doubtfire-lms/doubtfire-web,final-year-project/doubtfire-web,alexcu/doubtfire-web