vt7 dev release - Am seeing a large number of Javascript warnings: unreachable code after return statement

In Firebug if I enable Warnings in the debugger I am seeing a lot of these messages.

This is the description of the problem:

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Stmt_after_return

And here's a screenshot of my browser with Firebug enabled: