Run Travis on Facter 1.x and Facter 2.x
Run Travis on Facter 1.x and Facter 2.x

One of the custom fact spec tests failed on Facter 1.x but not Facter
2.x. This extends the Travis matrix to include both so as to better
identify these issues in the future.

mbrodala/puppetlabs-git,pagemachine/puppetlabs-git,redhat-cip/puppetlabs-git,gwdg/puppetlabs-git,pagemachine/puppetlabs-git,mbrodala/puppetlabs-git,puppetlabs/puppetlabs-git,mhaskel/puppetlabs-git,johnduarte/puppetlabs-git,michaeldfallen/puppetlabs-git,patrickkelso/puppetlabs-git,redhat-cip/puppetlabs-git,patrickkelso/puppetlabs-git,johnduarte/puppetlabs-git,puppetlabs/puppetlabs-git,mhaskel/puppetlabs-git,michaeldfallen/puppetlabs-git,gwdg/puppetlabs-git