Take the scissor rectangle into account for hit testing.
Take the scissor rectangle into account for hit testing.

Closes #40.

weilitao/flambe,mikedotalmond/flambe,Disar/flambe,Disar/flambe,weilitao/flambe,playedonline/flambe,aduros/flambe,Disar/flambe,aduros/flambe,playedonline/flambe,mikedotalmond/flambe,markknol/flambe,Disar/flambe,markknol/flambe,weilitao/flambe,playedonline/flambe,aduros/flambe,playedonline/flambe,markknol/flambe,aduros/flambe,mikedotalmond/flambe,mikedotalmond/flambe,weilitao/flambe