v11.74

In various commits between 11.64 and 11.74:

Changed cpp variable MAC68K to MAC_68K everywhere.
Fixed handing register type term with the '%' op in mac11.
Removed le_itfc call in mac68k. The alternate exp handler isn't going to work in mac68k without some additional tweaking. So, it is just disabled.
Rolled version to 11.74.

Fixed bug where le_itfc() was never being called.
Fixed bug where initial text position on listing line 1 set incorrectly.
Fixed bug with lib_exprs string handler.
Fixed bug in deleteAllMacros() function.
Fixed complier complaint in mk_operstuff.c.
Added dump_stack() test.
Fixed comment in macxx.html.
Fixed bug in m68types.c setting ED_AMA for branch.
Added test for -green in le_itfc.c.
Removed all references and files to mac682k.
Edited macxx.html with changes for mac8080.
Added lib_exprs into all assemblers. It has problems with some expressions on pseudo ops, so turn it off when using those.
Updated macxx.html with mac8080 stuff.
Removed a bunch of commented out code.
Fixed a minor problem with Makefile.common.
Added alltest.mac. Preparing to make a test suite for this tool. It will take a long time to develop.

Rolled version to 11.73.