Merge pull request #7 from henriquesa/master

Refactored Angular code, changed file structure, added views, a landing page, fixed piano bugs
Merge pull request #1 from appbaseio/master

Merge pull request #7 from henriquesa/master
Indented code
Merge branch 'master' of https://github.com/henriquesa/javascript-piano
Merge branch 'gh-pages' of https://github.com/henriquesa/javascript-piano into gh-pages
Merge branch 'master' into gh-pages