fix failing integration tests due to enabling optimistic locking on loans

mifosng-provider/src/main/java/org/mifosplatform/portfolio/loanaccount/domain/Loan.java

@@ -35,7 +35,6 @@ import javax.persistence.Temporal;
 import javax.persistence.TemporalType;
 import javax.persistence.Transient;
 import javax.persistence.UniqueConstraint;
-import javax.persistence.Version;
 
 import org.apache.commons.lang.ObjectUtils;
 import org.apache.commons.lang.StringUtils;
@@ -119,8 +118,9 @@ import com.google.gson.JsonPrimitive;
         @UniqueConstraint(columnNames = { "external_id" }, name = "loan_externalid_UNIQUE") })
 public class Loan extends AbstractPersistable<Long> {
 
-    @Version
-    int version;
+    /** Disable optimistic locking till batch jobs failures can be fixed **/
+    // @Version
+    // int version;
 
     @Column(name = "account_no", length = 20, unique = true, nullable = false)
     private String accountNumber;