Commits
Merge pull request #207 in HDFFV/hdf5 from ~KOZIOL/hdf5:develop_swmr_merge_06 to develop * commit 'f8cfbee05e26a815134cd1f1fb0ad87d8d9b16dd': Merge SWMR-related testing to existing tests. Bring over tweak for missing environment variable. Update CMake configuration files with SWMR accumulator changes. Add missing accumulator test. Merge SWMR-oriented accumulator tests from revise_chunks to develop.
