pytest-capturelog is blacklisted, switch to pytest-catchlog

[lorengordon]

See pytest-dev/pytest#3005.

pytest-catchlog: https://github.com/eisensheng/pytest-catchlog

[KevinPlus3]

Adding note here - while we have merged in this change - it appears the test is failing for the newer version of pytest that we will hopefully be moving to. So I am going to look into updating the tests so the new version of pytest can be used.

[KevinPlus3]

Conditional added to test.txt in requirements to use older version for Python 2.6 and Python 3.3 and use newer version for 2.7 and 3.4+.

Updated test_logger since pytest 3.3 now captures logging.

Fixed in #446.