* New feature, the ability to 'invert' namespaces in Special:Allmessages, given

* New feature, the ability to 'invert' namespaces in Special:Allmessages, given
  a namespace the 'Invert' namespace can be selected to perform WHERE
  page_namespace != $namespace instead of WHERE page_namespace = ..

** Added code in includes/SpecialAllpages.php to make this possible

** Removed messages: allpagesformtext1 and allpagesformtext2 (obsoleted by the
   new allpagesformtext messsage)
** Renamed message allpagesnamespace to allinnamespace
** Added messages allnonarticles, allnotinnamespace, contributionsformtext

** includes/SpecialContributions.php no longer uses allpagesformtext2 but the
   new contributionsformtext