py-test-fixture-config: updated to 1.7.0

1.7.0:
* All: Support pytest >= 4.0.0
* All: Support Python 3.7
* pytest-server-fixtures: if host not defined on your machine, default to localhost
* pytest-server-fixture: Pin to rethinkdb < 2.4.0 due to upstream API changes
* pytest-verbose-parametrize: Add support for revamped marker infrastructure
* pytest-verbose-parametrize: Fix integration tests to support pytest >= 4.1.0
* pytest-virtualenv: Add virtualenv as install requirement.
* pytest-webdriver: Fix RemovedInPytest4Warning using getfixturevalue
* circleci: Fix checks by skipping coverall submission for developer without push access
* wheels: Generate universal wheels installable with both python 2.x and 3.x
* dist: Remove support for building and distributing *.egg files
* VagrantFile: Install python 3.7 and initialize python 3.7 by default
* Fix DeprecationWarning warnings using "logger.warning()" function

1.6.2:
* pytest-server-fixtures: suppress stacktrace if kill() is called
* pytest-server-fixtures: fix random port logic in TestServerV2

1.6.1:
* pytest-server-fixtures: fix exception when attempting to access hostname while server is not started

1.6.0:
* pytest-server-fixtures: added previously removed TestServerV2.kill() function
* pytest-profiling: pin more-itertools==5.0.0 in integration tests, as that's a PY3 only release

1.5.1:
* pytest-verbose-parametrize: fixed unicode parameters when using @pytest.mark.parametrize

1.5.0:
* pytest-server-fixtures: made postgres fixtures and its tests optional, like all other fixtures
* pytest-server-fixtures: reverted a fix for pymongo deprecation warning, as this will break compatibility with pymongo 3.6.0
* pytest-server-fixtures: dropped RHEL5 support in httpd

1.4.1:
* pytest-server-fixtures: server fixture binary path specified in ENV now only affect server class 'thread'


(adam)