Updated the ideal block number.
Updated the while blocks to remove the dropdown when there is only one option. Also, changed the while current spot is not clear to have images.
Added a level before Level 11 that just has mound.
Changed mounds to pile.
Changed the give blocks in Karel 2 to be uneditable and undeletable.
Speeded up certain levels that have a lot of steps.
Merge pull request #8 from nanan9177/mooc

Updated Karel Based on the Feedback
Fixes trashcan bug.
Merge pull request #9 from espertus/mooc

Fixes trashcan bug.
Added the images for mounds/holes of overflowing sizes. Also moved level 7, 8, 9 to appear at level 3, 4, 5. Instructions need to be updated, as well as markers which need graphics help.
Updated the ideal blocks and start blocks after the level moving around.
Changed Karel 2 Leve 6 to be fill 8 and remove 8.
Added the start blocks for Karel 2 Level 7, and also put the obstacles in it. Need to update the obstacle image.
Removed language menu from Maze and Turtle.
I didn't feel comfortable changing Bird and Farmer, but their
owners can change them by commenting out or removing the definitions
of languageMenu in their template.soy files.
Trunk dialogs integrated with stars/dialog buttons etc.
Pre/Post/Pre&Post/None type of interstitials
common.css created
generated blocks instead of images for interstitials
general updates to text and style.

Changelist carried over from svn https://codereview.appspot.com/13319043/
Added the cow.png image as the the obstacle.
Merge pull request #10 from espertus/mooc

Removed language menu from Maze and Turtle.
Changed the Farmer tutorial to have number on their names (Farmer 1, Farmer 2).
Changed to Quick Start
Merge remote-tracking branch 'code/mooc' into mooc