* add extension mechanism to timeseries metadata
* resultTime extension
* additional resultTime option in getData for timeseries
refactoring and adding configuration
Merge pull request #74 from janschulte/metadataExtension

Metadata extension
add new flot chart formatter
Merge pull request #75 from janschulte/develop

add new flot chart formatter
fix license header
Merge remote-tracking branch '52n/develop'