Changed client code to read attr 'temporal_resolution' direct from LayerGroup obj
Repaired rain, easy fixxx
Add simple fn for string concatination to UtilSvc
test became obsolete and failed, console log zap
Merge pull request #147 from nens/dirk_add_temporal_resolution_to_layergroup_model_CLIENT

Changed client code to read attr 'temporal_resolution' direct from Layer...