Fixing UserHandler::logout() plugin invocation to use $user instead of  $this
Fixing UserHandler::logout() plugin invocation to use $user instead of 
$this


git-svn-id: d0e296eae3c99886147898d36662a67893ae90b2@2302 653ae4dd-d31e-0410-96ef-6bf7bf53c507

dragonmantank/Habari,dragonmantank/Habari,dragonmantank/Habari