Mini-block upsells for flappy, hoc, and 20hours on learn.code.org and sign-in page.
Merge branch 'finished' into learnui
Fix weird ideal solution for free play levels.
Move upsell strings to string table.
Automatically upgraded blockly-dist.
Shorter and cleaner code.
Merge pull request #406 from code-dot-org/learnui

Mini-block upsells for learn.code.org
Merge pull request #407 from code-dot-org/blockly_fix

Fix weird ideal solution for free play levels.
Merge pull request #408 from code-dot-org/finished

Finish to Delievered