Merge pull request #7 in HDF5VOL/vol-tests from ~JHENDERSON/vol-tests:master to master
* commit 'b5469bee5216871ecacfa1811a5a2bdc4d07f374':
Add several committed datatype tests
Make sure to call MPI_Init in serial tests if parallel is enabled
Add parallel tests to CMakeLists.txt
Cleanup layout of VOL testing file
Initial setup for parallel testing
Converting more tests to multipart
More updates for multipart tests where TEST_ERROR was previously used
Update multipart link tests
Update multipart group, dataset and object tests
Update multipart attribute tests
Initial implementation for correct handling of multipart tests
Use generate_random_dataspace() function where possible
