hmm, was this really supposed to work with flag 0?
reduced default range of tests to stay within acceptable runtime limits
actually let the program fail if tests failed
added test for MPIX_Allgather_x()
reverted two tests to comply with trunk
nicer names for tests
exclude tests which are designed to fail and/or would take too long to complete
Merge pull request #16 from gentryx/master

Added test for MPIX_Allgather_x()