GEOS-6245: implemented dynamic width and height calculation for Style LegendURL in WMS Capabilities
GEOS-6245: little fix to size calculation
GEOS-6245: switched using local storage in data_dir for cached samples
GEOS-6245: fixed some tests randomly failing
Merge branch 'geos6245_legend_size' of https://github.com/mbarto/geoserver into mbarto-geos6245_legend_size
remove catalog listener on dispose
Merge branch 'mbarto-geos6245_legend_size'