Bump default release to latest stable (7.3)

Author: runejuhl

manifests/params.pp

@@ -8,7 +8,7 @@
   # parameters dealing with installation
   $install_server = true
   $install_client = true
-  $release        = '3.12'
+  $release        = '7.3'
   $version        = 'LATEST'
 
   # we explicitly do NOT set a priority here. The user must define