Add dependencies for lua and openid for mediawiki

We have OpenID and Scribunto installed, but their deps aren't
puppetized.

Change-Id: Iff3209ce0fd5bf811bd3b931e4a83518448e43c0
Reviewed-on: https://review.openstack.org/27862
Reviewed-by: James E. Blair <corvus@inaugust.com>
Approved: Clark Boylan <clark.boylan@gmail.com>
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Tested-by: Jenkins

manifests/init.pp

@@ -19,7 +19,8 @@ class mediawiki(
     include mediawiki::php
     include mediawiki::app
 
-    package { 'libapache2-mod-php5':
+    package { ['libapache2-mod-php5',
+      'lua5.2']:
       ensure => present,
     }
 

manifests/php.pp

@@ -1,7 +1,12 @@
 # Class: mediawiki::php
 #
 class mediawiki::php {
-  package { ['php5', 'php5-cli', 'php5-mysql', 'php-apc', 'php5-intl']:
+  package { ['php5',
+    'php5-cli',
+    'php5-mysql',
+    'php-apc',
+    'php5-intl',
+    'php-openid']:
     ensure => present,
   }
   # TODO: apc configuration