This is a combination of 2 commits.

Addressing review comments for Loan-Accounting bridge
another update to cover not properly formatted (utf8) report metadata
MIFOSX-36 - Add/Edit Code values
Added business rules validatation for unassign loan officer
Merge remote-tracking branch 'nayan/unassignlo'
wip: Refactoring and Documentation
update patch on tenants
Merge remote-tracking branch 'vishwasbabu/mifosx-151'
MIFOSX-36 - Added validation for Integer  parameters