0.21 6 March 2004
 - fixed typo with d-i tag
 - more work on bug event handling.
 - Added new method to ListingListener - notifies when done reading in all
   reports 
 - Reduced number of download progress notifications for bug reports

0.20
 - Use master.debian.org/~mh (bugs.d.o now points to new machine, which is too
   restricted. Master mirrors the files every half hour at the moment)

0.19
 - Added support for unknown tags (stored as a list of strings). 
 - Creates all directories if needed, not just toplevel
