Refactored most main.coffee code into a KeyanoView
Pull base LESS into base/ dir. Move KeyanoView and KeyanoApplication into separate files.
Gitignore static/js/*.js and static/css/*.css
Revert "Gitignore static/js/*.js and static/css/*.css"

This reverts commit 3e8ac10eef5c1994e46abfea6e3c3ab8ac44b3f0.
Bugfix: Can now click buttons and have them depress instantly
Update README. Add warning comment in pianoKeyUtils
README polishes
README polishes