Performance update

I changed the renderer to canvas fallback instead of webgl. This seem to have beter performance, because the game doesn’t use any textures, but uses Phaser graphics api, which seems to work better in canvas mode. My hunch is that this will also fix the level 2 bug a lot of you have been reporting. However this is a shot in the dark as i have not been able to reproduce this myself and i only got one console log from a very helpful player. Please post a comment if the error persists…