Moved /app/ to /app/scripts/.
Moved data.json and config.json to /app/data/. JSON files are not excluded anymore.
Moved /img/ to /app/images/.
Moved main.css and all other stylesheet.css' to /app/styles/. Deleted empty stylesheet.css'.
Moved /tests/ to /test/.
Added 2 tasks to copy/delete the main.js-file so the Jasmine SpecRunner can use it. Otherwise it doesn't work if the main.js isn't located in the same folder as the SpecRunner.
Removed duplication in the default-task by reusing the test and build tasks.