Adding nav client unit test

Using the jasmine package seemed like the best way to go because we'll want most of the testing modes. I added the travis file, but it doesn't quite work yet (see https://travis-ci.org/anthonymayer/Telescope). I don't think any other changes should be required of the travis file right now though because I'm controlling it all through https://github.com/anthonymayer/travis-ci-meteor-packages. Once I get that working I'll probably add a tag in the README too.

Mostly I'm looking for feedback on testing structure. I'm hoping that after we have a few more examples of these that we start making adding/updating tests a requirement of push requests. I'm not sure what the best way to get their attention is, but getting feedback from either @sanjo and/or @samhatoum would be awesome.

I also deleted some nav stuff that looked unused.