Merged revision(s) 594612-607681 from perl/modperl/branches/threading:
This one makes PerlInterpScope more advisory. Using pnotes increment the 
refcnt of the interp thus binding it to the lifetime of the pnotes. So, using 
$c->pnotes binds the interp to the lifetime of the connection, $r->pnotes to 
the request lifetime.

$[rc]->pnotes_kill() can be used to prematurely drop pnotes and thus remove 
the binding.

Reviewed-By: gozer
Submittted-By: Torsten Foertsch <torsten.foertsch@gmx.net>
Message-Id: <200710241945.25803.torsten.foertsch@gmx.net>


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Forgot to add the test case for a previous fix.

Reviewed-By: gozer
Submitted-By: Torsten Foertsch <torsten.foertsch@gmx.net>
Message-Id: <200705101104.48324.torsten.foertsch@gmx.net>


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git-svn-id: https://svn.apache.org/repos/asf/perl/modperl/branches/httpd24threading@1537745 13f79535-47bb-0310-9956-ffa450edef68