Added guardfile to create two folders.

one for dist - this will eventually include a compressed and minified
version and one for testing. Because HAML and Coffeescript are
interpreted into HTML/JS, both the dist and the test folder can use
typical node packages like karma to handle the rest of the devolpment.

I also added logic so that the index.html.erb file does not need to
reside in scaffolded projects. It would be nice to include all uncessary
files in an actual project into the scaffolding.