Merge pull request #57 from erinn/rhel7

Add in rhel 7 selinux support.

manifests/params.pp

@@ -3,7 +3,7 @@ class postfix::params {
     'RedHat': {
       $seltype = $::lsbmajdistrelease ? {
         '4'   => 'etc_t',
-        /5|6/ => 'postfix_etc_t',
+        /5|6|7/ => 'postfix_etc_t',
         default => undef,
       }