- Update to version 2.10.1
* The bytecode hinting of OpenType variation fonts was flawed, since
the data in the `CVAR' table wasn't correctly applied.
* Auto-hinter support for Mongolian.
* The handling of the default character in PCF fonts as introduced
in version 2.10.0 was partially broken, causing premature abortion
of charmap iteration for many fonts.
* If `FT_Set_Named_Instance' was called with the same arguments
twice in a row, the function returned an incorrect error code the
second time.
* Direct rendering using FT_RASTER_FLAG_DIRECT crashed (bug
introduced in version 2.10.0).
* Increased precision while computing OpenType font variation
instances.
* The flattening algorithm of cubic Bezier curves was slightly
changed to make it faster. This can cause very subtle rendering
changes, which aren't noticeable by the eye, however.
* The auto-hinter now disables hinting if there are blue zones
defined for a `style' (i.e., a certain combination of a script and
its related typographic features) but the font doesn't contain any
characters needed to set up at least one blue zone.
- Add tarball signatures and freetype2.keyring

- Update to version 2.10.0
* A bunch of new functions has been added to access and process
COLR/CPAL data of OpenType fonts with color-layered glyphs.
* As a GSoC 2018 project, Nikhil Ramakrishnan completely
overhauled and modernized the API reference.
* The logic for computing the global ascender, descender, and
height of OpenType fonts has been slightly adjusted for