Tested successfully locally. Note that the command options change with the new plugin. Once merged we will need to also update the CI builds. See https://github.com/davehunt/pytest-mozwebqa/blob/master/README.md for details.
Switch over to use the mozwebqa py.test plugin instead of conftest.py
Merge branch 'remove-captcha' into switch-to-plugin
Removed record_error as this is now covered by the pytest plugin.
Added plugin to requirements file.