Give precedence to feature style
Distinct style function types
Conflate ol.format.GPX.V1_1 and ol.format.GXP into ol.format.GXP
Start earlier to log points for kinetic
Ensure that the first point for kinetic is valid
Merge pull request #2405 from tsauerwein/kinetic-fast

Improve kinetic effect when panning fast
Document debugtilesource
Merge pull request #2415 from probins/debugtile

Document debugtilesource
Merge pull request #2403 from bartvde/gpx-write

ol.format.GPX writeFeatures is not working
Update buildcfg/readme
Add option to process GPX extensions nodes

Fixes #1791.
Add tests for GPX extensions
Remove unnecessary newlines
Document options default value
Add link to the OSM XML documentation
Merge pull request #2417 from probins/patch-1

Update buildcfg/readme
Merge pull request #2421 from fredj/misc

miscellaneous documentation and coding style fixes
Automatically dispose the ViewportSizeMonitor
Dispose the tiles removed from the cache
Build css if source is newer

Previously, build/ol.css wasn't getting rebuilt on updates to css/ol.css.