EDIT

fixing multiple issues for #4312 ([E+M] strange search result entries in turn to simple search for Anthyllis hamo*)

maps are now exclusively using the rest_gen.php endpoint. all usages of areas.php and point.php are removes

fixing #4142 (openlayers icon links broken when enabling perfomance option 'Aggregate JavaScript files') and adding nicer control icon theme

hiding legend div if no legend is available

fixing map display problems in openlayers where only a portion of the data layers was displayed when using a base layers with metric layer unit

adding option to define proj4js definitions

clearly distinguish between layer dataTyp which can be AREA or POINT

fixing problems with plain image map settings

point layer was using old openlayes api - updating

adding support for custom wms and solving some bugs