Synchronize Entity.loadData and vz.entities.loadData handling and reduce duplicate code
Merge pull request #131 from andig/fix-vzload

Fix Entity.loadData ignoring aggregation and vz.options.speedupFactor
Change Zaehlerstaende -> Zählerstände (similar to Gebäude)
Merge pull request #133 from andig/fix-naming

Change Zaehlerstaende -> Zählerstände (similar to Gebäude)
remove
Merge branch 'master' into dev