Rename ol.Map#render to ol.Map#renderSync
Rename ol.Map#requestRenderFrame to ol.Map#render
Switch to asynchronous rendering by default
Handle asynchronous rendering in tests
Add ol.Map#isRendered
Only render overlays if the map is rendered
Always read line-by-line with mode rU
Always read binary files with mode rb
Always write binary files in mode wb
Use write to avoid newline problems
Add geometry parsing for point, line, polygon
Add parsing for gml:Surface
Add parsing for gml:Curve
Add parser for gml:Envelope
Deal with srsDimension
Add gml:MultiPoint parsing
Add support for gml:MultiLineString
Add support for gml:MultiPolygon
Add gml:MultiCurve support
Add support for gml:MultiSurface