Fix module version mismatch. Expected 11, got 13.

I think this bug has been known before (atom/atom#2101, #21). It seems that at the moment atom (or apm) is bundling v0.10.26 with apm even if atom is build using a newer version (v0.10.28 in my case).

Or is this a wanted behavior? In that case I'm sorry, forget about my PR. :wink: