OGM-650 Travis will use a matrix to run the tests
OGM-650 Travis will use a matrix to run the tests

  This should be useful when some datastores won't be up to date to the latest changes
  and a contributor does not have to wait for the other tests to work.

DavideD/hibernate-ogm-contrib,DavideD/hibernate-ogm-contrib,DavideD/hibernate-ogm-contrib