wok log jpeg/receipt

age author description
2010-08-17 Pascal Bellard jpeg: update genpkg_rules
2010-08-14 Matthew Sheets jpeg: Upgrade to 8b
2010-02-16 Rohit Joshi add/improve TAGS j* receipts
2007-12-18 Christophe Lincoln Add : jpeg, libpng, tiff-* and xterm