Randomize color selection for metrics
Add values to the histogram widget's bars
Merge branch 'feature/issue-138-bring-back-dimension-margins' into feature/issue-135-histogram-improvements

Conflicts:
	diamondash/widgets/histogram/js/views.js
Merge branch 'develop' into feature/issue-135-histogram-improvements
Visual distinction between hovered over bars and the other bars for histogram widget
Add hashing util
generate chart colors by hashing metric names
Merge branch 'develop' into feature/issue-135-histogram-improvements
Mod metric hash results by metric collection size when generating chart colors
Rebuild
Merge branch 'feature/issue-135-histogram-improvements' into develop