Inside the eventHandler this.scope is not set (as it's called on the scope itself)

Interestingly enough, this does not make any difference at all to any of the tests - I was trying to solve another problem with my code and just stumbled over this. Maybe someone can shed a bit light onto this line and what it does. @justinbmeyer maybe?
Merge branch 'patch-2' of git://github.com/simpleTechs/canjs into simpleTechs-patch-2
adding a test to the #550 fix