Changes to Italic styles:
- extend Latin character set from AL-3 to AL-4
- add Cyrillic (covering AC-2)
- add Greek (covering AG-1)
Changes to Roman styles:
- minor updates to spacing of modifer glyphs
- updates to some Cyrillic characters as suggested by external advisors
- minor updates to Cyrillic kerning
- updates to some Greek characters as suggested by external advisors
Global changes:
- overhaul ccmp feature to decompose accented glyphs when followed by combining
mark, thus allowing double-stacking of accents (addresses #41, #42) - add ccmp solution for Ukrainian її clash, also for Latin ïï (addresses #48)
- add Bulgarian Cyrillic alternates both via locl and ss01 feature (addresses #20)
- add Serbian/Macedonian Cyrillic alternates both via locl and ss02 feature
Roman and Italic styles now support the same global character set,
in both static and variable versions.