update default error message for fund data integrity constraints.

mifosng-provider/src/main/java/org/mifosng/platform/fund/domain/Fund.java

@@ -30,6 +30,7 @@ public class Fund extends AbstractAuditableCustom<AppUser, Long> {
 	}
 	
 	protected Fund() {
+		//
 	}
 
 	private Fund(final String fundName, final String externalId) {

mifosng-provider/src/main/java/org/mifosng/platform/fund/service/FundWritePlatformServiceJpaRepositoryImpl.java

@@ -81,9 +81,9 @@ public class FundWritePlatformServiceJpaRepositoryImpl implements FundWritePlatf
 		
 		Throwable realCause = dve.getMostSpecificCause();
 		if (realCause.getMessage().contains("fund_externalid_org")) {
-			throw new PlatformDataIntegrityException("error.msg.fund.duplicate.externalId", "Fund with externalId {0} already exists", "externalId", command.getExternalId());
+			throw new PlatformDataIntegrityException("error.msg.fund.duplicate.externalId", "A fund with external id '" + command.getExternalId() + "' already exists", "externalId", command.getExternalId());
 		} else if (realCause.getMessage().contains("fund_name_org")) {
-			throw new PlatformDataIntegrityException("error.msg.fund.duplicate.name", "Fund with name {0} already exists", "name", command.getName());
+			throw new PlatformDataIntegrityException("error.msg.fund.duplicate.name", "A fund with name '" + command.getExternalId() + "' already exists", "name", command.getName());
 		} 
 		
 		logger.error(dve.getMessage(), dve);