hdfview

Merging in latest from upstream (HDFVIEW/hdfview:refs/heads/hdfview-3)

* commit 'fba960ffce3f4fd3a84bfa409cc520f5c28f6e13':
  Convert arg line to arg value
  Require Windows Installer version 5.0 for dual-mode packages
  Add Windows redist note
  Make "Launch HDFView" checkbox enabled by default
  Don't try to untar non-existent UsersGuide when packaging