compression algorithms.

compression algorithms.

The new version of Tcl/Tk plays nice(r) with VS2015 CTP 6+.

It's been absent from all alpha releases, which apparently nobody has noticed.

Patch by Alex Shkop.

Patch by Alex Shkop.

Behavior equivalent to m.configure_mock().  Patch by Kasia Jachim.

Behavior equivalent to m.configure_mock().  Patch by Kasia Jachim.

As noted in the comment, while the order of the items in the attributes is not
technically guaranteed, after all this time there is almost certainly user
code out there that relies on it, so we might as well test for it.

Patch by Chalmer Lowe.

Patch courtesy of Joe Jevnik.

Patch by Stéphane Wirtel.

Patch by Alex Walters.

I have compared output between pre- and post-patch runs of these tests
to make sure there's nothing missing and nothing broken, on both
Windows and Linux.  The only differences I found were actually tests
that were previously *not* run.

(closes #18147)