Implemented getFinancialInstitutions() method.
Added comment.
Merge remote-tracking branch 'origin/0.0.2' into 0.0.2
Transferred algorithm comments from LoanManager to CreditHistory.
Updated getLoansWithOutstandingStatements to return PaymentStatements
rather than Loans.
Fixed paymentStatements being added to the list if they were already
paid off.
Updated PlayerLoginListener to use updated method.
Renamed method.
Added comments to all public methods.