Disable retina on the iPad 3.
Disable retina on the iPad 3.

Kind of a lame solution, but there seems to be some limit that's crossed
when creating a canvas with dimensions a bit larger than 1024 (it's
around 1280 actually) that causes performance to tank hard.

Fixes #22.

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