`cid_count' to `FT_ULong'.
* src/cff/cffgload.c (cff_slot_load): Take care of empty `cids'
array.
* src/cff/cffload.c (cff_charset_done): Free `cids' array.
(cff_font_load): Create cids array only for CID-keyed fonts which
are subsetted.
* src/cff/cffobjs.c (cff_face_init): Check the availability of
the PSNames modules for non-pure CFFs also.
Set FT_FACE_FLAG_GLYPH_NAMES for a non-pure CFF also if it isn't
CID-keyed.
* src/cff/rules.mk (CFF_DRV_H): Add cfftypes.h.