wok log apngdis/receipt

age author description
2018-08-07 Pascal Bellard Update some web_site to https
2013-06-14 Aleksej Bobylev Add: gif2apng, apng2gif, apngasm, apngdis, apngopt, libpng+apng (latest stable libpng 1.6.2); up: optipng (0.7.4).