wok log xfig/receipt

age author description
2017-02-20 Pascal Bellard xfig, transfig: use png_set_dither with libpng
2017-02-15 Pascal Bellard xfig: update for libpng >= 1.4.1
2013-12-05 Pascal Bellard Add some licenses
2011-11-03 Pascal Bellard Add from wok-undigest: xbindkeys xfig xget xtel xv