Fixing cyrillic glyphs of Century Schoolbook font

[Alexander Sapozhnikov]

Hello!

Some cyrillic glyphs in Century Schoolbook L font (and in TeXGyreSchola too) are
ugly: they have strong difference from font "Shkolnaya" which described by
Soviet standard GOST 3489.23-71 and from some Schoolbook TrueType/OpenType
fonts: http://www.ljplus.ru/img4/s/h/shoorick/compare_schoolbook.png

I made changes in my local Century Schoolbook Roman font:
some letters was fixed (cyrillic De, de, Zhe, zhe, Ze, ze, I short, i short,
Ka, ka, El, el, em, e, ya, U shoft, u short and some derivatives of Ka and Zhe),
some letters was added (cyrillic Yat, yat).

I will fix other style fonts too: all of them (Bold, Italic and Bold Italic)
have same problems with cyrillic glyphs.

I want to publish these changes. It seems these fonts come from Ghostscript.
Can I post changes files or diffs here
or should I contact with developers of Ghostscript?

-- 
Alexander Sapozhnikov
http://shoorick.ru/