Log Message:
update to 2.3.12
changes:
- For  `FT_Open_Face',  new  parameters  are  available  to ignore
  preferred family names: FT_PARAM_TAG_IGNORE_PREFERRED_FAMILY and
  FT_PARAM_TAG_IGNORE_PREFERRED_SUBFAMILY.
- Support  for  incremental  font  loading  (controlled  with  the
  FT_CONFIG_OPTION_INCREMENTAL macro) is now active by default.
- Better support for vertical metrics.
- Various minor bug fixes.