Merge pull request #35 from bobsilverberg/1.4.8

Add a priority to test cases
add results filtering by priority and tester
adding sorting by priority in the multiselect suite and tag screens

also add filtering by tester in results
constrain filter suggestions list size
added new dependencies and test fixes
doc updates
doc update for priority
Remove display of priority from _case_details as it seems unnecesary and creates a display issue