Bug 197228 Need updaet createdBy info when serialize the module
When open module, designer will pass the property map which contains the createdBy info. this info should be retained by moduleHandle and then be updated and written when doing serialization. Note if this info is null, model should not update it during serialization. This could happen for api users or third-party designer. For BIRT designer, it will guarantee this value always not null.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/Module.java
super.setIntrinsicProperty( propName, value );
	}
	/**
	 * Returns the writer for this moudle.
	 * 
	 * @return the writer for this moudle.
	 */
	public abstract ModuleWriter getWriter( );
	/**
	 * Returns the module handle.
	 * 
	 * @return module handle
	 */
	public ModuleHandle getModuleHandle( )
	{
		return (ModuleHandle) getHandle( this );
	}
	/**
	 * Returns the fatal exception, which means some unrecoverable error is
	 * found in the included libraries.
	 * 
	 * @return the fatal exception
	 */
	public Exception getFatalException( )
	{
		return fatalException;
	}
	/**
	 * Sets the fatal exception.
	 *