Added scoreboard class, to use it, add a new public Field of that class in
the main class using it's construtor at onEnable and to show it, just use
the 'board' field at the setScoreboard() method from the player class.
Fully documented. Still, if you need help to tweak it just let me know.
Merge pull request #1 from samosaara/master

new Scoreboard by samosaara merge to master