V1.4  ??-???-??

External function call interface added.  New flexible memory allocation for
vm and paths; new error "memoryallocation".  More flexible font cache limit.

Interface fixes: Memory Fonts/Paths gadgets transposed, drag scroll bars
under 2.0.

Bugs fixed: writehexstring, zero height clipped paths, $error in userdict,
undocumented charstring codes, halftone cacheing, mixed type 1 and 3 fonts.