Issue 5163: Update URW++ OTF files

Issue 5163: Update URW++ OTF files

URW++ has been released URW++ core 35 fonts 2017-07-20.
It has some bugfixes.

This commit makes configure script can find latest URW++ OTF files (2017-07-20).
http://git.ghostscript.com/?p=urw-core35-fonts.git;a=tree;hb=1f28a6fcd2176256a995db907d9ffe6e1b9b83e9

It also can find previously released files (2017-05 and 2016).
http://git.ghostscript.com/?p=urw-core35-fonts.git;a=tree;hb=e3c665a8a3df36a54b22ad0b6176283db5310f97
http://git.ghostscript.com/?p=urw-core35-fonts.git;a=tree;hb=79bcdfb34fbce12b592cce389fa7a19da6b5b018