[tcltk-perl] Tcl and Tcl-Tk ready for 0.85 push

[Jeff H. <je...@Ac...>]

I have made minor changes to the modules and bumped their version
numbers to 0.85.  I think they are ready for release, if Vadim
doesn't mind giving them a push.

For Tcl, it is just making the Makefiled do --usestubs by default,
and a test case fix.

For Tcl-Tk, it is adding pkg_require to deprecate need_tk, fixing
some tests and making the build a tad more robust when it is a
subdir of the Tcl module.

I have already tagged them in CVS as Tcl-0-85 and TclTk-0-85.  If
any other changes are made, please remember to retag (with cvs
tag -F $TAGNAME).

Hopefully these minor changes will make everything pass for PPM
building here, but it needs to be pushed to CPAN to get the real
full test.

Jeff