Fixed some data types/added header files to remove compiler warnings.
Added trivial input data check to FT_Outline_Get_BBox().
Fixed type1z -> type1 file inclusions.
support for multiple X11R6 entries in $(PATH) added.
ftxbbox.c, ftcalc.c, ftdebug.c, ftdriver.h:
doc fixes.
ftdebug.c:
formatting.
ftdebug.h:
making makros `;'-safe (i.e., they can now be used within if-else clauses
without side effects resp. don't produce a single `;').