Description of problem:
Orca is missing a dependency on gnome-speech. It doesn't work without it.

Version-Release number of selected component (if applicable):
orca-2.22.3-1.fc9.i386

How reproducible:
Always

Steps to Reproduce:
1. Install orca on a system without gnome-speech (e.g. installed from the KDE spin).
2. Run orca from the command line.
  
Actual results:
Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/orca/speech.py", line 61, in getSpeechServerFactories                                                                  
    [''])                                                                       
  File "/usr/lib/python2.5/site-packages/orca/gnomespeechfactory.py", line 52, in <module>                                                                      
    ORBit.load_typelib('GNOME_Speech')                                          
RuntimeError: could not load typelib

Expected results:
Orca starts.

Additional info:
I found this while trying to reproduce an issue with Espeak and PulseAudio reported on the mailing list.

And after installing gnome-speech by hand, I run into bug 448198.