Merge pull request #2 from garethgreenaway/master

Updating bind salt-formula to include support to manage Bind on Debian
wrong filename
Merge pull request #3 from c0m4/patch-1

wrong filename
change grains to os_family instead of os (typeo?)
also add watch(restarts) for all bind config files
Merge pull request #5 from c0m4/patch2

change grains to os_family instead of os (typeo?)
cleaning up bind9 salt formula.
syncing with updates from upstream.