hdf5_chunking_query_bmr

[svn-r22052]      - h5dump: Added capability for "-a" option to show attributes containing "/"
               by using an escape character. For example, for a dataset "/dset" 
               containing attribute "speed(m/h)", use "h5dump -a "/dset/speed(\/h)" 
               to show the content of the attribute. See details at HDFFV-7523