Merge pull request #397 from cpirich/master

add arrow buttons for touch/mouse, use ticks for timeout
Translations
Add builder level to turtle.
Modify drawAnswer so it can go from levels.js configured answer or from server provided answer.
Add turtle level for newly build custom levels.
Factor evalCode so drawAnswer and execute can use the same code.
Merge pull request #391 from code-dot-org/builder

Builder
playSound dropdown, remove console.log, add failure sound