Added cancel functionality to deferred.
Code cleanup
Seperated graph scatter gather logic to it's own class.  Added scatter request tracking.
Cleanup
Clicking relative time caret now works as expected.  Metric search panel is now collapseable.
Updated docs
Fix for setURL not removing end date when going from absolute to relative time
Merge branch 'v2.3.4-dev'
Updated docs
Fix for graph grid lines to be equally spaced.
Fix for graph spacing
Updated docs