Dojo Whitespace Cleanup

**Not merge-ready yet :)**

Just to keep track of it, if someone else stumbles upon it. Some files in the Dojo app currently mix tabs and spaces and there is a small display inconsistency with the "clear completed" button. Also, the [index-dev](http://todomvc.com/architecture-examples/dojo/index-dev.html) version is broken at the moment and it doesn't seem to be actually required.

I'm still wrestling around with the build system. When I figure it out, I will add some notes to the readme on how to compile it.