Upgraded api-console

We've improved our build process in the console, which included a breaking change to the editor. This pull-request updates designer to use the new path to app.js.

Note, when merging this in, you'll have to reinstall the console with bower on your local machines - this is because we're git ignoring bower_components. It might make sense to explicitly check these in, so that unaware developers won't have things break unexpectedly.