Merge pull request #1931 in HDFFV/hdf5 from feature/references to develop
* commit '9ed9762889fcd05dc230d6652b92fddc5ec880a4':
Update RELEASE.txt for reference changes
Fix reference type comparison in h5dump
Make wrappers, tests and tools use H5Treclaim() instead of H5Dvlen_reclaim()
Add new H5R API that abstracts object, region and attribute reference types
Remove ability to loc by ref from H5VL layer
Add support for retrieving object name by token
Add H5VL_OBJECT_GET_TYPE to get object type
Add H5VL_MAX_TOKEN_SIZE and H5VL_token_t
Adapt Jerome's "file info" H5VL 'get' query to retrieve container token info.
Fix H5VL_blob_get to return size of blob
Add 'blob' callbacks to VOL, along with a native implementation to store them in the global heap, and changed the VL datatype conversion code to use blobs.
