hdfview

Merge pull request #131 in HDFVIEW/hdfview from ~JHENDERSON/hdfview:master to master

* commit '3f2515b8feddebdfcbe35680dca4b21ee7a2df76':
  Require Windows Installer version 5.0 for dual-mode packages
  Make "Launch HDFView" checkbox enabled by default
  Don't try to untar non-existent UsersGuide when packaging