Ubuntu Trusty and Puppet 3.2.x, 3.6.x, 3.7.x

Hi,

I've added a jail.conf.erb template for Ubuntu Trusty
Alos, I've updated params to allow 'trusty' as a distrib name
I've added up to date Puppet Versions for testing with Travis-CI, but given the name of your branch I'm not sure if that's ok...

Let me know what you think!