Wifi CP fixes: Apache listen and servername

Use the IP address for a Servername and make sure we listen on port 81

modules/rhizo_base/manifests/wifi.pp

@@ -41,6 +41,20 @@ class rhizo_base::wifi {
       notify  => Service['apache2']
     }
 
+  file { '/etc/apache2/ports.conf':
+      ensure  => present,
+      source   => 'puppet:///modules/rhizo_base/ports.conf',
+      require => Package['apache2'],
+      notify  => Service['apache2']
+    }
+
+  file { '/etc/apache2/mods-enabled/rewrite.load':
+      ensure  => link,
+      target  => '../mods-available/rewrite.load',
+      require => Package['apache2'],
+      notify  => Service['apache2']
+    }
+
   firewall { '000 accept DHCP (udp port 67)':
     proto   => 'udp',
     iniface => $wifi_if,