1388 - Update postgresql module to 4.x

modules/discourse/manifests/init.pp

 class discourse(
     $domain,
     $certificate,
     $private_key,
     $is_default = false
   ) inherits private::discourse {
 
-  include postgresql::server
+  class {"postgresql::server":}
 
-  postgresql::database {'discourse':}
+  postgresql::server::database {'discourse':}
 
-  postgresql::role {'discourse':
+  postgresql::server::role {'discourse':
     password_hash => $database_password,
     db => 'discourse',
     login => true,
     superuser => true,
-    require => Postgresql::Database['discourse']
+    require => Postgresql::Server::Database['discourse']
   }
 
   $basic_dependencies = ['postgresql-contrib', 'redis-server', 'ruby1.9.1',
       'libjemalloc1', 'curl']
   $gem_dependencies = ['git', 'build-essential', 'ruby1.9.1-dev', 'libxml2-dev',
       'libxslt-dev', 'libpq-dev']
   $image_optim_dependencies = ['advancecomp', 'gifsicle', 'jhead', 'jpegoptim',
       'libjpeg-progs', 'optipng', 'pngcrush']
   $image_sorcery_dependencies = 'imagemagick'
 
@@ skipping 90 matching lines @@
     refreshonly => true,
     environment => ["AIRBRAKE_KEY=${airbrake_key}"],
     user => discourse,
     group => www-data,
     timeout => 0,
     logoutput => true,
     require => [Package['bundler', $gem_dependencies],
                 User['discourse'], File['/etc/sudoers.d/discourse'],
                 Exec['fetch-discourse'],
                 File['/opt/discourse/config/discourse.conf'],
-                Postgresql::Role['discourse']]
+                Postgresql::Server::Role['discourse']]
   }
 
   Discourse::Sitesetting <| |> {
     require => Exec['/usr/local/bin/init-discourse']
   }
 
   discourse::sitesetting {'title':
     ensure => present,
     type => 1,
     value => 'Adblock Plus internal discussions'
@@ skipping 152 matching lines @@
     global_config => '
       upstream discourse {
         server localhost:3000;
       }',
     is_default => $is_default,
     certificate => $certificate,
     private_key => $private_key,
     log => 'access_log_intraforum'
   }
 }