Bug 148755 Add tthe status to the ActivityStackEvent.
If the the event rollback, the ActivityStackEvent status should be ROLL_BACK.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/activity/ActivityStack.java
.next( ) );
				listener.stackChanged( event );
			}
		}
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.api.CommandStack#startPersistentTrans(java.lang.String)
	 */
	public void startPersistentTrans( String label )
	{
		transStack.push( new CompoundRecord( label, true ) );
	}
	/**
	 * Starts a persistent transaction. Once the transaction is committed, it
	 * will never be undone with all calls to rollback( ) or rollbackAll( ). To
	 * make the transaction undone is just to call undo( ).
	 */
	public void startPersistentTrans( )
	{
		startPersistentTrans( null );
	}
	/**
	 * Starts a silent transaction. All events in the trasaction will not be
	 * sent out.
	 * 
	 */
	public void startSilentTrans( )
	{