Switch the Mediawiki config to the new LDAP dir structure

* Use a new read-only account instead of the admin LDAP account
* Disable the LDAPAuthorization plugin. The LDAPAuthentication2 plugin
is still used to authenticate users, but every kosmos.org user has
access to the wiki. See
https://www.mediawiki.org/wiki/Extension:PluggableAuth for the
distinction between authentication and authorization

Refs #127

site-cookbooks/kosmos-mediawiki/metadata.rb

@@ -4,7 +4,7 @@ maintainer_email 'mail@kosmos.org'
 license          'MIT'
 description      'Installs/Configures kosmos-mediawiki'
 long_description IO.read(File.join(File.dirname(__FILE__), 'README.md'))
-version          '0.2.1'
+version          '0.3.0'
 
 depends "mediawiki"
 depends "ark"