This changes how the AD auth backend handles multiple domains. It is now
possible to configure multiple authentication domains even when not
using SSO. USers can provide a domain in NTLM- and Kerberos-Style
(prepended with a backslash, appended with a @-char).

IMPORTANT: If you used AD auth before, you will need to adjust your ACLs
           and $conf['superuser'] settings.

This patch changes how user names are cleaned. Spaces and other special chars
are no longer removed. The only adjustment is lowercasing the username
and streamlining the domain handling.

User's login names will now contain the domain name in Kerberos style
(user@yourdomain.com) when they logged in a non-default domain. You need
to make sure your ACLs are setup accordingly.

Domain names are always lowercased and need to be specified lowercased
in the config.

* master:
  allow selects in block forms

The new version of adLDAP improves the speed in handling recursive group
memberships dramatically

* adldap4:
  make use of adLDAP 4.0.4 in AD backend

* multiad:
  lowercase groups
  make AD utilitiy functions public
  add user's domain to the list of groups
  fixed domain handling in user names
  some code cleanup/PHP5ization
  use UTF-8 aware lower casing
  Better support for multi domain AD setups

Conflicts:
	inc/auth/ad.class.php

This merge fixes all conflicts but is otherwise untested and might break
funktionality in the auth system somewhere. It NEEDS MAJOR TESTING!

Some refactoring of the auth plugins is still needed:

  * move to PHP5 style
  * fix comments
  * add plugin.info.txt

* janschumann/master:
  Refactored auth system: All auth methods are now introduced as plugins.
  Bugfix: auth types are now correcty added
  Setup auth system from plugins
  Added Auth-Plugin-Prototype to autoload
  Load auth types from plugins in settings_authtype class
  Added prototype for Auth-Plugins
  added plugin type 'auth'

Conflicts:
	inc/auth.php
	inc/auth/pgsql.class.php
	inc/init.php
	inc/load.php
	lib/plugins/auth.php
	lib/plugins/authad/auth.php
	lib/plugins/authldap/auth.php
	lib/plugins/authmysql/auth.php
	lib/plugins/authplain/auth.php

* master:
  Always load the parser in the test environment
  Escape filename in regex in search_index()
  Changed XHTML validator icon to HTML5 (FS#2619)
  fixed wrong apple-touch-icon extension (FS#2627)
  Revert "removed html dependency from media query detection JS in new template"
  removed html dependency from media query detection JS in new template
  de-couple mobile JS from widths to actual media query equivalent (fixes FS#2623)

We need to decide how to handle the renaming of the auth classes. Should
this be done automatically somehow? Or is an admin expected to fix this
manually when updating?

* master: (45 commits)
  TarLib code cleanup
  TarLib: fixed appending in non-dynamic mode
  fixed third method of adding files in TarLib
  fix lone zero block in TarLib created archives
  fix use of constructor in TarLib
  Slovak language update
  Korean language update
  Latvian language update
  removed redundant variables in tpl_include_page() (because of 3ff8773)
  added cut off points for mobile devices as parameters to style.ini
  Corrected typo: ruke -> rule
  Persian language update
  Spanish language update
  russian language update
  Kazach language update
  correctly check hash parameter in media dispatcher FS#2648
  avoid broken browser_uid on IE
  Removed acronyms for "Perl" and "PERL" as Perl is not an acronym. See http://learn.perl.org/faq/perlfaq1.html#Whats-the-difference-between-perl-and-Perl-
  Made striplangs.php executable
  release preparations
  ...

This does nothing currently but allows us adding certain things
to the base class later.

* fixes incorrect $this->adldap calls
* makes use of correct plugin config

* makes proper use of plugin config
* adds a few first defaults, but the whole config metadata is still
  missing
* proper PHP5 use and comments

* use proper plugin config
* code/PHP5 cleanup

* fixes merge messup (code was made up from parts of authad)
* code and PHP5 cleanup

* code/PHP5 cleanup

okay. I can't read. we already had a multiline config. It's the default.
So I reverted my change, except for making use of formText/cleanText for
proper line ending handling and I added made focused textareas a bit
larger.

Saving worked, but did you log out everytime. Now it is checked if the
auth mechanism was actually changed before assuming the login is
invalid.

* confmanager:
  added failing test for array type
  started to add some unit tests to config manager
  Revert "config manager: let PHP parse the config file"
  added 'array' type for config manager
  config manager: let PHP parse the config file
  config manager: removed dead/commented code
  added PCRE UTF-8 checks to do=check FS#2636
  avoid multiple paralell update checks
  fix regression bug in HTTPClient FS#2621
  changed PAGEUTILS_ID_HIDEPAGE to has BEFORE/AFTER
  added event PAGEUTILS_ID_HIDEPAGE
  added test for isHiddenPage()
  add index file similar to fileicons to show active smileys
  fix E_STRICT errors FS#2427

* confmanager:
  fixed problems with spaced arrays
  parse arrays from config file