Unit tests for juice

[sieh...@googlemail.com]

Hi,

I saw that nadeem added unit tests with QUinit in his branch. I had
the same idea and also created a unit test framework. Can you please
have a look at branches/20090529-voj-fix-branch ? I added a README in
the test/ directory, an ant build file and Rhino, so you can run tests
either in your browser or via ant from command line. I included the
basis tests by nadeem so far.

Greetings,
Jakob