added test add lab to scheduler, test failed
scheduling add labs now works
added scheduler test lab conflict, test failed
fixed scheduler test lab conflict, test passed
added test add second lab, test failed
test add second lab passed
fixed issue with scheduling container not checking the last course and lab for conflicts
added test remove lab, test failed
fixed test remove lab

if a course has a lab, and the lab was added but the course couldn't be
added, the lab is now removed from the schedule container.
scheduler now checks labs with padding
Merge pull request #20 from forstermatth/scheduling_lab_dev

Scheduling lab dev