Gwt 548 549 551 552 553 554

GWT-548: LayerList widget: show all layers of maps
GWT-549: LayerListWithDeletButton widget + controller for creating client side WMS layer based on wizard
GWT-551: ClientLayerList Widget: shows only client side layer widgets
GWT-552: geomajas-gwt-client: MapModel: add and remove layers: fire ChangeMapModel event
GWT-553: bean name change in featureinfo-example-jar
GWT-554: add gwt.xml file to geomajas-wiget-featureinfo module