Commits
Merge pull request #196 in HDFVIEW/hdfview from ~BYRN/hdfview_adb:hdfview-3 to hdfview-3 * commit 'e5fdb9f51573284bb649b68326844933f3c1d609': Allow building without HDF4
Merge pull request #196 in HDFVIEW/hdfview from ~BYRN/hdfview_adb:hdfview-3 to hdfview-3 * commit 'e5fdb9f51573284bb649b68326844933f3c1d609': Allow building without HDF4