Log Message:
Update to ricty-ttf-4.1.1

The official repository on GitHub has been removed, and has moved to
another web site.

Changes from 4.1.0 to 4.1.1:
- Integrated the script to generate Ricty Oblique to the main
  generator script.

Changes from 4.0.1 to 4.1.0:
- Integrated the script to generate Ricty Discord to the main
  generator script.
- Ricty now depends on Inconsolata 2.000 or later.

Changes from 4.0.0 to 4.0.1:
- Added hinting information.

Changes from 3.2.4 to 4.0.0:
- Ricty now uses Inconsolata-Regular/Bold.ttf instead of
  Inconsolata.otf.
- Removed the option to generate a bold variant of Inconsolata.