Package creation style

[PT_MAGEE%VAX.ACS.OPEN.AC.UK@CORNELLC.cit.cornell.edu]

In system.lisp all the Symbolics packages are faked by creating new
ones which :use user if you aren't running on a Symbolics.  Is
it not nicer to create EW package with all these packages as :nicknames
after building the appropriate list of packages which need to be created by
appropriate use of (find-package ... etc.  We have found that
otherwise our millions of calls to tv:make-window fail.

Pete Magee.