Update PE dependency in 1.4.x
Update PE dependency in 1.4.x

PE < 3.7.0 binds to puppetlabs-concat 1.0.x, which is incompatible with
the vhost rewrite that was added in puppetlabs-apache 1.2.0.

digitalmediacenter/puppetlabs-apache,svanhart/puppetlabs-apache,FlatKey/puppetlabs-apache,bmjen/puppetlabs-apache,traylenator/puppetlabs-apache,guegue/puppetlabs-apache,buzzdeee/puppetlabs-apache,guegue/puppetlabs-apache,digitalmediacenter/puppetlabs-apache,traylenator/puppetlabs-apache,yakatz/puppetlabs-apache,FlatKey/puppetlabs-apache,samuelb/puppetlabs-apache,gerhardsam/puppetlabs-apache,buzzdeee/puppetlabs-apache,gerhardsam/puppetlabs-apache,samuelb/puppetlabs-apache,dzmitryv/puppetlabs-apache,eputnam/puppetlabs-apache,eputnam/puppetlabs-apache,dzmitryv/puppetlabs-apache,svanhart/puppetlabs-apache,puppetlabs/puppetlabs-apache,puppetlabs/puppetlabs-apache,yakatz/puppetlabs-apache,bmjen/puppetlabs-apache