added "DELETE" rights for created db user. This is e.g. necessary for moving entities between groups
do not grant global delete rights, grant delete on entities_in_aggregator only
properties can be deleted as well
Fix cost hiding to take removal of entity into account
Add support for displaying entity selection in chart
Merge pull request #151 from andig/fix-selection

Add support for highlighting entity selection in chart
Merge pull request #145 from kusemuckl/master

added "DELETE" rights for created db user. 
THX for the patch! :-)
Merge pull request #150 from andig/fix-cost-hiding

Fix cost hiding to take removal of entity into account