Redirect to play page for non-existent levels. Fixes issue #396
Tweaked sprite scripts to use given response buttons even if the script is not skippable.
Modified locale messages for "level_load_error"
Used internationalised strings for level not found message
Moved internationalisation of level load error message into template file
Merge pull request #422 from yangshun/level-not-found

Redirect to play page for non-existent levels. Fixes issue #396
Trying to get session code merging to work again.
Added a screen for when playback ends.
Merge branch 'master' of https://github.com/codecombat/codecombat
Fixed simulator

The format of something must have suddenly changed?
Improved match scheduling
Implemented espionage mode
Made the docs modal larger.
Fixed the region and point choosers for the level editor.
Merge branch 'master' of https://github.com/codecombat/codecombat
Re-denormalize session if things have changed. Removed some logs.
Added a delay to the property documentation on spell debug hover.
Changed session scheduling
Forget old goals.
Merge branch 'master' into production