The following error is output while create livecd under cli
with media_live_optical=1 in revisor configure file.

Traceback (most recent call last):
File "/usr/lib/python2.6/site-packages/revisor/init.py", line 528, in run
self.base.run()
File "/usr/lib/python2.6/site-packages/revisor/base.py", line 108, in run
self.cli.run()
File "/usr/lib/python2.6/site-packages/revisor/cli.py", line 44, in run
self.base.lift_off()
File "/usr/lib/python2.6/site-packages/revisor/base.py", line 911, in lift_off
self.buildLiveMedia()
File "/usr/lib/python2.6/site-packages/revisor/base.py", line 1805, in buildLiveMedia
liveImage.package(destdir=os.path.join(self.cfg.destination_directory,"live"))
File "/usr/lib/python2.6/site-packages/imgcreate/creator.py", line 768, in package
self._stage_final_image()
File "/usr/lib/python2.6/site-packages/imgcreate/live.py", line 302, in _stage_final_image
create_image_minimizer(self.__isodir + "/LiveOS/osmin.img", self._image, self.compress_type)
AttributeError: 'x86LiveImageCreator' object has no attribute 'compress_type'