Updated mediawiki/skins
Project: mediawiki/skins/chameleon  39814c26c8ac83b86fcb5fee5d7be19b06b7cb0a

Add 'fixed' option to nav bar; bugfixes

* when 'fixed' is set in the xml on the navbar element, the navbar will appear fixed,
  however, it has to be the very first element in the document in this case
* bugfix (Go button triggers Search action)
* bugfix (duplicate ids when using pagetools and searchbar components twice)

Change-Id: Ief29fe6acfe93065c5c7ad63afda030a71c53e8f