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`PR 211 Python 3.7 compatibility changes (C4-753) <https://github.com/4dn-dcic/snovault/pull/224>`_
This change intends to let Snovault work in Python 3.7.
* Update ``psycopg2`` to use ``psycopg2-binary``.
* Use matrix format testing and adjust the way indices are built in so they include Python version number.
Needed to assure proper cleanup, but also to avoid these different processes colliding with one another.
* Adjusted GA testing to use ``250`` timeout instead of ``200``.
Opportunistic:
* Phase out use of ``TRAVIS_JOB_ID`` in favor of ``TEST_JOB_ID``.
A tiny bit of additional code is retained in case ``cgap-portal`` or ``fourfront`` still use any of this,
but none of the calls in ``snovault`` try to use ``TRAVIS_JOB_ID`` any more.
* Rename the ``travis-test`` recipe to ``remote-test`` in ``Makefile``.