Merge pull request #1 from gatoravi/master

Synchronizing Fork
Merge pull request #2 from gatoravi/master

Import Upstream
first attempt at a dng wrapper
implement dng help command -> dng command help
rename dng -> dng.sh
fixed typo
moved denovogear -> libexec/dng-bin; Install dng.sh as bin/dng
added uninstall target; updated .gitignore
Merge branch 'master' of https://github.com/reedacartwright/DNG_dev into reedacartwright-master
Merge branch 'reedacartwright-master'