Prior to this commit, users needed to be aware that the puppet
master service would need a restart if certain config files
were changed (routes.yaml, puppetdb.conf). This commit
adds a notification that will trigger a service restart if
those files are modified.
Prior to this commit, all of the puppetdb packages were being
installed with 'ensure=present'. This commit changes things
so that you can explicitly specify a version if you desire;
the default is still 'present'.
This commit does the following:
* Use the new inifile module to manage puppet.conf
* More comprehensive management of config files
* Validate database connectivity before applying puppetdb
config changes
* Validate puppetdb connectivity before applying puppet
master config changes
* Documentation
