new images, some localization, change to how flappy goal works
add a bunch of assets and some other fixes
some cleanup and lesson updates
cave theme
workaround for IE bug where it handles click button event twice
use flat ground assets
more assets
Merge branch 'flappy' of github.com:code-dot-org/blockly into flappy
two typo fixes
one more typo fix
some string changes, jshint fixes, general polish
variety of fixes/polish
Merge pull request #407 from code-dot-org/flappy

Flappy