Added DOKU_BASE for local target

uses the user interwiki link as profile link

* allowed urlparams
 * added `wiki:users:` as default user profile link

Implements an event which can modify the link below usernames, and the
displayed user name.

When no name supplied, the name of currently logged-in user is used.

localize jQuery UI date picker FS#2912

Added video and audio support

renamed conflicting JavaScript functions FS#2915

FS#2901: Fix lessphp on PHP 5.2.0

Add the original filename to sendFile for Content-Disposition

* origin/PR523:
  Update tpl_getConf() signature to match plugin::getConf()

Translation update (ko)

The regex wasn't properly escaped here which lead to problems when the
path contains backslashes. This is the root cause of the bug reported
at https://github.com/cosmocode/edittable/issues/19

We now use phpversion() instead of php_logo_guid()

Translation update (id)

Translation update (cs)

Update action.php

fix bug that only allows admins any AJAX calls

Translation update (tr)

Needs a check for null now.