upgraded to cljsbuild 0.2.10

Hi Luke,
I upgraded domina 1.0.2-SNAPSHOT by removing the explicit dev dependencies and upgrading cljsbuild to version 0.2.10 which already includes the lates clojurescript. The only problem that I experienced is the long delay in returning from `$ lein cljsbuild once` after the successful compilation. I was not able to shoot the problem.

My best

Mimmo