Added notes about concat dependency
Automatically install and configure DNS root hints
Better ordering parameter in case resource becomes optional
infra-host-ttl option added
Merge pull request #8 from nicwaller/note-dependencies

Added notes about concat dependency
Merge pull request #10 from rlex/features/infra-host-ttl

Added infra-host-ttl option
Merge pull request #9 from nicwaller/feature-roothints

Automatically install and configure DNS root hints
Merge pull request #1 from xaque208/master

Merge latest changes from upstream