Update uk.coffee

ukrainian localization
Update zh-HANS.coffee

Translate items under editor.
Moved the model schemas into a models folder.
Removed a log.
Merge branch 'master' of https://github.com/codecombat/codecombat
Fixed #786.
Non-admins can save (but not overwrite) file uploads.
Update RU for windows-script-installer
Update RU.coffee
Merge pull request #829 from M-r-A/i18n

Update RU.coffee
Refactored contribute views to share some templates and link to users' profile photos and GitHub accounts when available.
Merge branch 'master' of https://github.com/codecombat/codecombat
Implement simulators leaderboard
Merge pull request #827 from M-r-A/i18n-wininstaller

Update RU for windows-script-installer
Merge pull request #824 from julycoolwind/patch-1

Update zh-HANS.coffee
Merge branch 'master' of https://github.com/codecombat/codecombat
Merge branch 'master' of https://github.com/JasperDhaene/codecombat
Update hu.coffee
Quick fix for crashing server

Undo when investigating which schema does this
A bit of error handling.