[Twisted-Python] 0.19.0rc3

[Chris Armstrong]

It's that time again! Twisted 0.19.0rc3 has been made available on
www.twistedmatrix.com. Everybody please check it out and report any bugs
(that aren't already in  Known Issues).

Here's the current list of known issues (from the README file)::
    * Twisted Sister unit tests don't pass, and even cause the runtests
      process to eventually totally freeze.
    * FTP unit tests *still* fail, with an error about "test_ftp.py" not
      being in the file listing.
    * There are other issues with wakeUp on win32 which are causing unit
      tests on win32 to fail/hang.
    * marmalade is broken on python 2.2,
      because of type/class unification issues. Should be an easy fix.

Also, I was notified by an anonymous informant last night that
generate-domdocs isn't running properly on Mac OSX. While this isn't really
important, it'd be nice to have that fixed too. :-)