added unique constraint to GrievanceTagsTable and altered logic for inserting a GrievanceType (which also inserts GrievanceTags sometimes). This fixes the bug where dupe grievanceTags were showing up in teh GrievanceTypeDialogFragment's MultiAutoCompleteAdapter
Merge pull request #21 from lewisNotestine/bugfix_adapterDupes

added unique constraint to GrievanceTagsTable and altered logic for inse...