add makeimage to create 1 image with all the avatars.

This is for the controller so it only has to load 1 image
instead of 16 images
use avatars.png in controller so we don't have to load all the images
try out anything that's -minify gets minified
Merge branch 'master' of github.com:greggman/hft-tonde-iko
add score to controller
Merge branch 'controller-minify'
Merge branch 'master' of github.com:greggman/hft-tonde-iko