Check for nil interface
Add support for retrieving rubydns from native OS package, or not at all
Merge pull request #7 from elliotkendallUCSF/master

Support fetching dnsruby via OS package (or not at all), sanity check nil interfaces
Merge pull request #9 from dim/master

Chef 11 compatibility
Foodcritic fixes
Release v0.0.7
Remove unused recipe