added test add lab test fails

added the test to the scheduling container this time, since that's the
only container that needs labs in it.
add lab test passed
added test multiple labs, test failed
added test add multiple labs, test passed
tests passed
added test prev lab, test pased
prevLav now wraps to begining
prevLab now wraps
added conflict checking for labs
Merge pull request #11 from forstermatth/lab_scheduling_dev

Lab scheduling dev