Log Message:
Update to 1.7.  Notable changes:

Added support for 68hc08, 6809, AVR ATmega8,
16f627, 16f628, 12f629, 12f675, 16f818, 16f819, c166.

Sped up INCBIN for those processors that have it.

Fixed bug in register aliasing where memcpy was being called
instead of memmove (needed to handle overlapping cases).

Fixed ordering of bytes when using DW with AVR processors.

Fixed bug in Z80's CPDR instruction generation.