Unittests

Various improvements to allow running JUnit parametrized class tests for the H2, MySQL and PostgreSQL database.

Passes tests http://srv.elexis.info/jenkins/job/Elexis-3.0-Core-ngiger/10/

Look at ch.elexis.core.data.tests/readme.textile for the requirements to run the tests.

What I don't understand is that in http://srv.elexis.info/jenkins/job/Elexis-3.0-Core-ngiger/10/consoleText I find
"Before creating new organistaion found 2 Organisation" where as locally I got "Before creating new organistaion found 3 Organisation".