Example applying a convolution kernel to an image
Fix coding style
Set text style in ol.render.Box
Merge pull request #1804 from fredj/box-text

Fix ol.render.Box text
Add write support for gml:Point
Add write support for gml:LineString
Use correct axis order in write
Correct axis order for gml:pos
Add write support for gml:Polygon
Add write support for gml:MultiSurface
Serialize polygon as surface
Add write support for gml:Curve
Add write support for gml:MultiPoint
Add write support for gml:MultiLineString
Add write support for gml:MultiPolygon
Add write support for gml:MultiCurve
Finish off writeGeometry
Implement writeFeatures
Finish write support for features
Use more intelligent node factories, less duplicate code