in KML loader: add description parser for "equation-like" data, and use this data as fallback, if name/place cant be loaded otherwise
instead of DARIAH maps, allow WMS overlay from config
Merge branch 'KML_WMS_XYZ_overlays'
BugFix: remove test data
Merge branch 'KML_WMS_XYZ_overlays'
BugFix: if a cell is empty, disregard it's content
Merge branch 'piechart'
Merge branch 'origin/master'