updated dependencies

Hi Crieghton,
I updated the following deps:
- clj -> 1.5.1
- cljs ->   0.0-1896
- cljsbuild -> 0.3.3.
- domina -> 1.0.2-SNAPSHOT  (the 1.0.1 tag has a very annoying bug)

I tested it with a sample project and it works.

Do whatever you want to do with this pull request. BTW, even if I updated the testing project.clj as well I did not test it.

My personal opinion is that we should implement unit testing code by using clojurescript.test lib. I the next few days I'll start to write the tutorial-20 on enfocus. Depending on how much I'll be able to apply my obsession with the DRY principle, it could be ready in a week or so.

My best