GWTII-168: Separate all Geomajas Server dependencies from the WMS plugin.
GWTII-168: Separate all Geomajas Server dependencies from the WMS plugin. Remove WmsLayerLegend widget from API.
GWTII-168: Separate all Geomajas Server dependencies from the WMS plugin. Remove WmsLayerLegend widget from API.
Merge branch 'GWTII-168_WMS_Layer_capa' into GWTII-171-PluginIntegration