add constants in Config file
add repaid_date in Loan Table
small changes
add lessThanOrEqual method in Money Object
add methods in Loan Class
add amount methods in BorrowerRefund Class
small change
add calculateInstallmentsCounts method in RepaymentSchedule
add exhcnae_rate in InstallmentPayment table
use exchange_rate from InstallmentPayment table
change Date columes convention for Loan Schema
small fixes
add CalculateOnTimeRepayment Score
small fix
remove unnecessary check
shift code
Merge pull request #154 from SingularityGuy/on-time-repayment-schedule

On time repayment schedule