Update geom package to use new extent structure
GML parsing with new extent structure
Filter encoding with new extent structure
WMS capabilities parsing with new extent structure
Proj support for new extent structure
GeoJSON and TopoJSON tests for new extent structure
Tile grid working with new extent structure
Source updates for new extent structure
Vector layer updates for new extent structure
View support for new extent structure
Geom2 package working with new extent structure
Canvas renderer updates for new extent structure
DOM renderer updates for new extent structure
WebGL renderer updates for new extent structure
New extent structure in examples