add partial_credit calculation, remove unnecessary time_finder function
add partial credit to all applicable soft constraints
add new constraint frame, begin implementing callbacks for time dropdowns
implement constraint function and link it to GUI
add disclaimer to before/after constraints
fix bug in start/end time dropdowns for instructor break constraint
fix display issue in end time dropdown for instructor break constraint
fix merge conflicts from develop
add duplicate constraint check for instructor break
adjust constraint_adding_conflict to check for break constraints
Merge pull request #32 from donnell74/partial_credit

Partial credit and Instructor Break constraint