Pierre-Yves David <pierre-yves.david@ens-lyon.org> [Fri, 04 Jan 2013 19:06:42 +0100] rev 18224
dispatch: handle empty `testedwith` value in extension
When extensions had an empty `testedwith` attribute the code tried to parse it
and failed. As a result the actual error were shallowed by a This crash.
We now treat empty strip as 'unknown'