Added test cases that catch a current bug that is we are going to focus on fixing.
Merge branch 'late_tool_fix' of https://github.com/abztrakt/labgeeks-chronos into late_tool_fix

Conflicts:
	labgeeks_chronos/tests.py
Made some small changes to a couple of the test cases.
Now the get_conflicts_and_no_shows method takes a list of shifts so that the number of shifts the user is scheduled for in a day can be comapred to how many they worked that day. Fixes SDEV-564