Comment 4 for bug 917675

This bug is already detected and corrected upstream (although I found in the hard way, by debugging the code).

Comitted for 0.7.8

http://www.igalia.com/nc/work/project/item/ocrfeeder/

Fix Unpaper issue due to an unexisting variable gb#668027
There was a temporary_dir varibale that was left unchanged when the configuration started using TEMPORARY_FOLDER.
Thanks to Buganini Q for reporting and posting the fix.
Joaquim Rocha05/03/2012

As a temporary fix change in lib.py, routine unpaperImage at line 133
tmp_dir = configuration_manager.temporary_dir
to
tmp_dir = configuration_manager.TEMPORARY_FOLDER