Fx 26: use CSP category for logging. This removes the [Read me] link in the message text (fx 26).
Hopefully, we should be using a high-level api for this in the future (https://bugzilla.mozilla.org/show_bug.cgi?id=843004)
Merge pull request #34 from thomasandersen/master

Fx 26: use CSP category for logging. This removes the [Read me] link in ...