Remove unused _dirty flag from TimelapseCircleTimeline. Refresh after receiving data from a DataProvider.
Add IntervalExplored event to TimelapseBreakpointTracker, to notify BreakpointDataProviders when changes are made to the e shared TimelapseIntervalManager object. Fixes #147.
Untabify TimelapseBreakpointScanner.js, TimelapseBreakpointTracker.js, TimelapseOverview.js.
Merge pull request #223 from rjbailey/timelapse

Clear breakpoints timeline fog as scanning progresses.