add new app: bounce
Merge pull request #378 from cpirich/master

add new app: bounce
add placeholder loc files - copied from maze
Merge pull request #379 from cpirich/master

add placeholder loc files - copied from maze
new updates to bounce app
Merge pull request #381 from cpirich/bounce_updates

new updates to bounce app
Merge pull request #380 from code-dot-org/levelTests

Better support for creating tests for levels.
IE9.10.11 don't support beginElement, so I just disabled it for them. It looks a little clunky but it's a quick fix. A better fix would be to figure out how to replicate that behavior in IE9,10,11.
Merge pull request #382 from code-dot-org/beginelementfix

IE9.10.11 don't support beginElement, so I just disabled it for them. It...
support testing for artist/turtle levels