copy over bounce renamed as flappy
missed a couple of bounce -> flappy changes
introduced when click event, and flap block with velocity and gravity
Add client side builder form so teachers can add options. So far, all that's supported is instructions.
add a bunch more event blocks
make sure to reset velocity
remove some unneeded events
replace paddle with bird
remove a bunch of code
only detect mouse down inside svg square
move bird to pixel space
fix clipping on flappy
add play sound block
added ground, though no collision detection yet
Merge pull request #400 from cpirich/master

Master - bounce art assets
initial pipe work
more pipe work and change background/ground images
randomize pipe gap, ground over pipes
Merge pull request #399 from code-dot-org/builder

Add client side builder form so teachers can add options.
change avatar to bird