Merge Rich Alderson's changes

[larsbrinkhoff]

http://www.panix.com/~alderson/klh10-2.0h_for_OSX.6.8/

[Rhialto]

Now we can see what he actually changed.

[larsbrinkhoff]

There aren't many changes. I should create a pull request.

[Rhialto]

I think most are even covered by changes we had already. Off the top of my head, I remember a few different things:

• the "gcc code generation fix" as seen from multiple sources (already included)
• remove some remaining, unneeded, dependencies on pc console lights and its object file dvlites.o via KLH10_DEV_LITES (done somewhat differently but also effective)
• the symbolic names for the shared memory call (that I applied recently)
• maybe a bit more I'm forgetting right now.