Improve code and apidoc formating
Remove unused ol.format.Polyline.decodeFloat function
Remove unused ol.format.Polyline.decodeSignedInteger function
Remove unused ol.format.Polyline.encodeFloat function
Remove unused ol.format.Polyline.encodeSignedInteger function
Remove unused ol.format.Polyline.decodeUnsignedInteger function
Merge pull request #1777 from fredj/polyline-cleanup

ol.format.Polyline cleanup