Latest (as of 2020/09/10) font release from URW++

Mainly to fix letter te (afii10084) in Nimbus Sans Bold(Italic)

2017/08/01 font release from URW++, with updated metadata

The same font files as the previous release (hence the base date staying the same), but with the metadata fixes done since then (hence the ".1" postfix).

Release of 2017/08/01 font release from URW++

fontconfig: rename files to contain urw-* string at the beginning

  This helps to keep order in names when these files are installed,
  and makes packaging of the fonts easier.