Add spherical geometry functions
Add remaining geolocation properties
Store heading in radians, thanks @fredj
Merge pull request #197 from twpayne/geolocation-all-properties

Add remaining geolocation properties
Merge pull request #196 from twpayne/sphere

Add spherical geometry functions
Rename MapBrowserEventHandler internal handlers name
Remove touch events handling in handleMouse* handlers
Add listeners for touchstart, touchmove and touchend events
Listen to IE pointer events
Move dblclick handling into touch handlers
Remove unused goog.require
Add ol.interaction.TouchPan
Add ol.interaction.TouchRotateAndZoom