hdfview

Merge pull request #182 in HDFVIEW/hdfview from ~JHENDERSON/hdfview:master to master

* commit '4a8aaf6c0c1d32f6939e07e9b67739c4dd4cf09c':
  Fix UI test for new VLEN display style
  Fix reload file as read-only/read-write functionality
  Fix data validators for variable-length strings
  Fix H5Datatype's fromNative() calling H5T methods on wrong datatypes
  Implement some missing FileFormat functions in H4File.java
  Small fix for soft links