Short Term:
- redesign some weird cyrillics in URW Gothic
- fix last 4 missed glyphs in Schoolbook and Nimbus Sans
- fix all missed glyphs in Nimbus Sans Cond
- to find the reason and the workaround for increased interline space
  after VN glyphs added

Long Term:
- fix all missed glyphs.
- improve bearings of glyphs (thanks Dmitry 40in who pointed me to this)
- improve outlines of some cyrillic glyphs