Merge branch 'new-build-system'

libarsnova-js now utilizes Grunt to perform builds, NPM for development
dependencies and Bower for browser dependencies. Maven builds are no
longer possible. Additionally the directory tree has been flattened.

The new build system supports builds using grunt-amd-build instead of
the Dojo build system which includes the RequireJS loader instead of
Dojo's. It is also possible preforming builds w/o a loader at all.