A new flag to exclude unmapped glyphs from the old-style "kern" table. Required for compatibility with non-OpenType-aware Windows applications.
Added dialog option to exclude non-BMP glyphs from the old-style 'kern' table
Change warning message about non-BMP glyphs in the kern table
Merge pull request #1989 from catharanthus/kern_unmapped

An option to exclude non-BMP glyphs from the old-style kern table
Write 'kern' subtable header correctly even if some kern pairs were dropped
Merge pull request #1994 from catharanthus/master

Write 'kern' subtable header correctly even if some kern pairs were dropped
problems: stop lying about path direction
Merge pull request #1996 from adrientetar/words

problems: stop lying about path direction