Add tests for Grunt-Tasks

[drublic]

We should add some tests for the grunt tasks in order to guarantee that the tasks are working as expected.

We should use nodeunit to do this. Preferable not to interfere with the reset of our setup.

[anselmh]

Still think we need this? I honestly don't think it's necessary and it will outdate as soon as someone edits the config (and most likely won't do or be able to edit tests accordingly). Therefore I am in favor of not implementing it.

[drublic]

I don't think so. There should be tests that look into config. I am still in favor of writing these tests.

[anselmh]

Allright :)