Fix Unittests (and thus Travis)

[eyecatchup]

Recent merges broke Unittests and Travis C.I. builds. TODO: Fix it.

Related changes are:

• https://github.com/eyecatchup/SEOstats/commit/9b2112 (backlinkcount-query)
• https://github.com/eyecatchup/SEOstats/commit/c3dd28e (tholu-proxy-config)
• https://github.com/eyecatchup/SEOstats/commit/bd3117f (feature-use-dotenv)

[eyecatchup]

PRs welcome ;)

[jamesspittal]

According to TravisCI, it looks like this merge most likely broke TravisCI/unit tests:

• https://github.com/eyecatchup/SEOstats/commit/9b2112c3af761242d7ee134b0e2e8d9b6cd90a47 (silvantonio-patch-2)