debian/watch

   1 version=3
   2 opts="dversionmangle=s/\+dfsg$//;,uversionmangle=s/(\D)$/${1}1/;s/b(?:eta)?(\d)?$/~beta${1}/" \
   3         http://sf.net/jabref/JabRef-(.+)-src\.tar\.bz2 \
   4         debian sh debian/repack.stub