Changes initial balance to 500
Adds methods to support scoring
Adds calculation of player stats
Fixes broken stat, cleans up tests
Adds test coverage for pitching stats
Fixes ranking issue and also pays out winnings (1st-3rd prize)
Sets correct amount for the bet
Merge pull request #11 from itsasquare/master

Merging upstream changes
Merge pull request #12 from itsasquare/development

Merges latest changes into master