Added ol.source.TileUTFGrid
Incomplete getFeatureInfo implementation
Added UTFGridJSON to the TileJSON externs
Implementation of the ol.source.TileUTFGridTile_#getData method
The preemptive loading of UTFGrid tiles is now optional
getTemplate method to get the Mustache template from the TileJSON
Added TileUTFGrid example
Suppress warning about dot notation (compiler would report undefined properties)
Various code style fixes
Documentation blocks for the option members
Improved TileUTFGrid example
Listen 'mousemove' and 'click' rather than 'pointermove' in the TileUTFGrid example
More properties made private
Use null instead of undefined in the callback
Fix failing tests in IE9
Merge pull request #3012 from bartvde/fix-ie9-tests

Failing tests in IE9
Modified the sync/async behavior logic of the forDataAtCoordinate* methods
Minor code style fix
preemptive is now true by default + improved documentation
Merge pull request #3015 from klokantech/utfgrid

UTFGrid Support