adjusted some colors, added a few common extensions for codeblocks

for backwards compatibility

now we no longer limit generation to the extensions in mime types,
because file icons are used in downloadable code blocks, too.

All icons were regenerated with the latest update of the generator.

fixed pagetools being inaccessible on screens lacking necessary height, and aligned them to content when on smaller screens

Snippet fixes

previously it never returned any users

Mediamanager: rename radio name attributes for sort and list buttons to

fix fs#2851
related to http://bugs.jqueryui.com/ticket/8761

using http://cleancss.com/

Add Apache module list to ?do=debug information

This should make it possible to see if mod_security is involved,
at least on servers running mod_php.

Yes, it's hiding $auth, but detail templates might depend on that. We
need to fix this properly.

This reverts commit 343aa174.

* pull-request-524:
  authldap: handle bad groupkey gracefully
  Update auth.php
  Update auth.php

* 'toolbar' of git://github.com/hafron/dokuwiki:
  megre changes
  add preventDefault to toolbar buttons

added bin/gittool.php for simpler git management of plugins

dw_qsearch as jQuery function

fix TestRequest

* 'master' of git://github.com/SteScho/dokuwiki:
  Update auth.php
  Update auth.php