Bug 121498 When datasource/dataset deleted, the datasource/dataset property binding element haven't been deleted
When deleted the datasource/dataset, the datasource/dataset property binding element haven't been deleted. Expected result: This operation must be a transaction.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/Module.java
}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.core.DesignElement#setIntrinsicProperty(java.lang.String,
	 *      java.lang.Object)
	 */
	protected void setIntrinsicProperty( String propName, Object value )
	{
		if ( UNITS_PROP.equals( propName ) )
			units = (String) value;
		else if ( THEME_PROP.equals( propName ) )
		{
			updateReference( theme, (ElementRefValue) value,
					getPropertyDefn( THEME_PROP ) );
			theme = (ElementRefValue) value;
		}
		else
			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