Restore WikiLove job!

The ZeroRatedMobileAccess project definition was missing the '-
project'. Since it cames just after the WikiLove project definition, the
WikiLove job was never generated.

Creates job:
browsertests-WikiLove-en.wikipedia.beta.wmflabs.org-linux-firefox

Change-Id: I337dfcf94c021af65c2194b42a9e3c292549d935