Changes for 1.93.01:

For m68k, support for more processors has been added: 68040, CPU32, 68851.

For i386, .align is now power-of-two; was number-of-bytes.

For m68k, "%" is now accepted before register names.  For COFF format, which
doesn't use underscore prefixes for C labels, it is required, so variable "a0"
can be distinguished from the register.

Last public release was 1.38.
