Bug 889058: import puppetlabs-firewall

From https://github.com/puppetlabs/puppetlabs-firewall.git
revision 4ac68a620ba01b54d764978a472f341a05d480cf
Bug 889058: add firewall wrapper ('fw' module)
Bug 885850 - Disable not needed cron jobs on Ubuntu test slaves. r=dustin
Bug 883693 - Upgrade supervisor to 3.0b2. r=Callek
Bug 836289 - puppetize release runner deployment. r=dustin
Bug 836289 - puppetize release runner deployment. r=bustage
No bug: remove relabs04 as an active puppetmaster
No bug: stop relabs04 trying to be a puppetmaster