update properties for release
added running balance as optional to GLAccount
MIFOS-805:Corrected update of loan product for term variation for loan cycle
MIFSOX-810: exception message returned rather than clean error message when attempt to add user that already exists.
mifosx-801:submitted date updation for clients
Merge remote-tracking branch 'pramod/MIFOSX-801_1' into mifosplatform-1.15.1
MIFOSX-811: ensure undo disbursement regenerated schedule when expected and actual disbursement dates are different.
update changelog for 1.15.1 release