bug#26647: Upgrade fabric to 1.13.2, remove upstreamed patch.

[Ben Sturmfels]

On Tue, 25 Apr 2017, Ricardo Wurmus wrote:

> Hi Ben,
>
>> The attached patch upgrades fabric from 1.13.1 to 1.13.2. The new
>> upstream version incorporates the patch that was previously required for
>> tests to pass. Yay!
>
> I have tried your patch but the tests seem to time out at this point:
>
>     Alias expansion ... ok
>     test_tasks.TestExecute.test_calls_task_function_objects
>     should execute the passed-in function object ... ok
>     test_tasks.TestExecute.test_nested_execution_with_explicit_ports
>     nested executions should work with defined ports
>     *crickets*
>
> After about an hour I aborted the build.  Is this test supposed to take
> a very long time?

Ow, that's a shame. The tests run fine for me, but I see that Debian
have this test disabled as it runs indefinitely on a single-core VM.
I'll look at disabling this test too.

Regards,
Ben