__CLASS__ constant is ok as parameter to instanceof operator in PHP 5.1.2, but not in 5.1.6?  Weird.  Fixes issue #22 (http://code.google.com/p/habari/issues/detail?id=22)
__CLASS__ constant is ok as parameter to instanceof operator in PHP 5.1.2, but not in 5.1.6?  Weird.  Fixes issue #22 (http://code.google.com/p/habari/issues/detail?id=22)

git-svn-id: d0e296eae3c99886147898d36662a67893ae90b2@113 653ae4dd-d31e-0410-96ef-6bf7bf53c507

dragonmantank/Habari,dragonmantank/Habari,dragonmantank/Habari