Task: apply debian patches
Tools: quilt
Command: quilt push -a
Description: Please read /usr/share/doc/quilt/README.source how to use
  quilt for managing Debian patches

Task: converting upstream tarball
Tools: bzcat, gzip
Command: bzcat supertuxkart-0.5.tar.bz2 | gzip --best -c > supertuxkart_0.5.orig.tar.gz
Description: As Upstream only provides bz2 compresssed tarballs we must 
  uncompress and recompress them to get gzip Format as is needed by the debian 
  archives