GWT-666: avoid warn log for change to WmsChooseLayerStep
GWT-668: labels Group Details
GWT-669: sub tab height configurable
Merge pull request #75 from geomajas/GWT-669_subTabHeightConfigurable

GWT-669: sub tab height configurable
Merge pull request #74 from geomajas/GWT-668_LabeldGroupDetails

GWT-668: labels Group Details
Merge pull request #73 from geomajas/GWT-666_WmsLayerChoiceAvoidWarn

GWT-666: avoid warn log for change to WmsChooseLayerStep
Merge pull request #72 from geomajas/GWT-662_canvasMapAddon

GWT-662: CanvasMapAddon + example: adding Canvas SmartGwt widget to the map
GWT-660: Deskmanager implementation of CanvasMapAddon