Python module updates

[Yaakov Selkowitz]

The following packages have been uploaded to the Cygwin distribution:

* python27-automat-0.7.0-1
* python27-clang-5.0.2-1
* python27-futures-3.2.0-1
* python27-hyperlink-18.0.0-1
* python27-incremental-17.5.0-1
* python27-rdflib-4.2.2-2
* python27-twisted-18.9.0-1
* python36-automat-0.7.0-1
* python36-clang-5.0.2-1
* python36-hyperlink-18.0.0-1
* python36-incremental-17.5.0-1
* python36-rdflib-4.2.2-2
* python36-twisted-18.9.0-1
* python37-automat-0.7.0-1
* python37-clang-5.0.2-1
* python37-hyperlink-18.0.0-1
* python37-incremental-17.5.0-1
* python37-rdflib-4.2.2-2
* python37-twisted-18.9.0-1

These releases update or add various Python module components, and
include 3.7 builds in preparation for that becoming the default
version.

--
Yaakov