Merge pull request #4 from ugupta/master

refactoring and unit test example
Mods in parsing, DTO and XLSX support
Client Import
Changing package hierarchy
Minors Mods with Unit Tests
Loan Import
Added LoanSheet Constraints
Added Loan Import Handler
Approval & Disbursement Support
Removed FundSheetPopulator
In-sheet Error Report
Loan Repayment Workbook
Savings Import
Import Handler Additions
Refactoring
Removed unnecessary code
Travis CI
Update README.md
Savings approval & activation
Merge remote-tracking branch 'upstream/master'