Fixed object history to show *Id fields right in cases those aren't really relations.
Added some CSS definitions for bootbox prompt and confirm modals.
Removed unnecessary qTip2 styles.
Added highcharts library.
Added "Charts" tab to sprint modal.
Fixed logic bug from policy.
Added new action to sprint menu.
Implemented new actions to sprint controller and added necessary policies for those.
Implemented sprint "charts" tab content.
Implemented sprint "charts" tab content.
Added new CSS file for charts.