* src/truetype/ttgload.c (load_truetype_glyph)
[TT_CONFIG_OPTION_BYTECODE_INTERPRETER]: Call
FT_GlyphLoader_CheckPoints before adding phantom points.  This fixes
a segfault bug with fonts (e.g. htst3.ttf) which have nested
subglyphs more than one level deep.  Reported by Anthony Fok.

* include/freetype/config/ftoption.h: Define
TT_CONFIG_OPTION_BYTECODE_INTERPRETER,
TT_CONFIG_OPTION_COMPILE_UNPATENTED_HINTING, and
TT_CONFIG_OPTION_FORCE_UNPATENTED_HINTING to make it the new
default.