Added a simple jasmine unit test

The album model is a simple enough class to start testing. I suspect adding more tests is going to require some refactoring &/or mocking.
If all build steps are successful then copy the files needed to run the app to the spotify folder

~/Spotify (Mac OS X and Linux)
“My Documents\Spotify” (Windows)

- If a file gets removed from the project, it won't delete it from the spotify folder. Perhaps as a simple solution it should clean the destination folder first.
- I've only tested this on Windows
- On Windows, it assumes the user's documents folder is in the default location (otherwise I think it means reading the registry...also, I'm not sure how Spotify deals with this - it could be that the apps have to be in the default location anyway!)
Clean the spotify folder before copying the new files