TestRemoveNetworkFailureNetworkDoesNotExist is failing on master branch

[jodh-intel]

Travis had previously passed the code at commit 8362442, but re-running the Travis CI tests now shows it is failing on test TestRemoveNetworkFailureNetworkDoesNotExist.

See #165 (comment)

[dlespiau]

PR #167 seems to have fixed that? Note github supported auto-closing issues based on tags in commit messages: https://help.github.com/articles/closing-issues-via-commit-messages/