[BZ 1120411] Only allow selecting a proper jdbc driver in the datasource configuration

(cherry picked from commit 28df962ff235511387aff36d79133ed503dc7769)
[BZ 1120411] Datasources (*) should not be tested like a datasource

(cherry picked from commit a106392596b6f8e717ee57c7a7b33d8ea891b9e4)
[BZ 1120411] Fix the integration tests and move selection from profile to managed

(cherry picked from commit c83e8c4536b07b7ea9b6571ef68af11c41018234)