Abstracted out leaderboard methods into leaderboard.js
Updated the leaderboard library function, and first pass at including leaderboard data (#62)
Replaced a clunky boardCallback call with a less clunky one.
Fixed style issues for leaderboard library (Fixes #62)
Merge pull request #81 from soedar/leaderboard

Leaderboard: /board endpoint should include data from each board of the game (#62)