Delay showing Launch App button until there is an app.
Show full path to file in title bar
Force CodeMirror to refresh if its content changes while hidden.
Enable Launch App button at beginning of step instead of at end.
Uncomment the rest of the tutorial.
Appearances happen at beginning of step instead of end.
Only show Skip link if the step is not completed.
Vendor app_files
Add Rdio to examples.
Fill in some guides as WIP
Update downloads page
Fix batman-rdio links.
Add simple starter.zip