Bridging the colon gap

[Mike McMahon <MMCM at MIT-AI>]

cc: JONL at MIT-MC

It is a total crock that the keyword package is the same as the user package.
I understand that it was moderately convenient at the time it was first
implemented, and that it avoided some problems in the cold load; however these
should have gone away long ago.  Teaching users not to put in the colons is
decidedly a bad practice, it can only lead to their confusion, and as well does
not allow for MACLISP compatible code outside of the user package.  Unless
there are nearly insurmountable problems i am not aware of, i propose biting
the bullet and fixing this at the same time as the other incompatible changes.