[PATCHES] Add docker-compose and missing prerequisites.

[Thompson, David]

Hello Guix hackers,

As much as I dislike it, the company I work for has started to use
Docker.  Docker Compose is a special Python program that talks to the
Docker daemon to run many containers at once using configuration from
a "declarative" YAML file (my kingdom for an sexp), and I didn't want
to use pip to install it.  So, here's 8 patches that add it and the
stuff that was missing for it.

I hear someone has a working Go package that hasn't been submitted
yet, so maybe we'll have Docker itself available someday.  That will
be interesting. :)

TIA for review.

- Dave

0001-gnu-Add-version-2.7-variant-of-python-requests.patch
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0002-gnu-Add-python-vcversioner.patch
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0003-gnu-Update-python-jsonschema-to-2.5.1.patch
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0004-gnu-Add-python-texttable.patch
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0005-gnu-Add-python-websocket-client.patch
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0006-gnu-Add-python-docker-py.patch
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0007-gnu-Add-python-dockerpty.patch
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0008-gnu-Add-docker-compose.patch
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