Document the buckets parameter for metrics retrieval (especially since it is used for charting).
Add overlay previous range.
Populate overlay data with data previous time range but replace timestamps with current data set timestamps to overlay current chart data.
Move directives to their own module so it can later be moved out to its own bower module.
Move directives to their own module so it can later be moved out to its own bower module.
Change .gitignore to ignore the stuff in node_modules/ and .tmp/ that grunt uses.
Fix advanced Range insert and make it more functional via lodash.
Add property for AllowDragDateSelections to enable/disable.
Add some usability by adding Enter Key defaults to Charting and  Inserts for faster/easier data entry.
Release 0.2.1.20140710-M2
Development 0.2.2-SNAPSHOT
Move to 'Controller as' syntax for angular best practices. It reclutters the $scopes from the controllers and makes it explicit in the view which controller provides the model. Especially useful in nested controllers. See articles: http://www.johnpapa.net/angularjss-controller-as-and-the-vm-variable/ and http://toddmotto.com/rethinking-angular-js-controllers/
Add toggling for Overlay Previous Range.
Add Line type chart.
Add configurable chart-type dropdown selection for bar or line types.
Add Area type chart.
Add scatter chart type.
Make a  'Show Avg Line' button with ability to toggle and add this as a property to the charting directive.
Add Chart type and features button bars to allow for future extensibility.
Fix date-time-range-selection-directive to work with GraphTimeRangeChangedEvent. Eliminate $scope elements in directive.