some class refactoring

(settings for gradle_krismer are now applied in jenkins directly)

reworked method visibility

...new values create smoother graphs

after/beforeCalculation methods)

preparations for JDK8 update

preparations for JDK update

fixed some generic type interferences

(now versions can be installed from nexus repository)

fixed problems with cargo deploy

improved error handling when geoserver could not create layers
fixed todo (added logging output on database table creation)
added some argument checks in DbUtility class

is not deployed on local test machine -> since the eclipse IDE deploys
the code in this case)

the DB)

datasets are calculated from configurations now

fixed problem with psi-probe

commented)