Bug 122850 Table/list should not be able to be inserted in Master Page mode.
Description: Table/list should not be able to be inserted in Master Page mode. Steps to reproduce: 1. New a report and transfer to Master Page mode. 2. New a datasource and dataset 3. Drag a list/table to page header/footer, bind it to dataset and drag some columns inside. 4. Save and preview Expected result: Insert list/table item in master page should be forbidden. Actual result: They are allowed and preview showed "undefine" in page
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/DesignElement.java
* this one object. That is, it gets the "local" property value. The
	 * property name must also be valid for this object. The name can be a
	 * built-in property name, or a user-defined property name. The value is set
	 * without checking the name for validity.
	 * <p>
	 * Part of: Property value system.
	 * 
	 * @param module
	 *            the module
	 * @param propName
	 *            name of the property to set. Must be valid. Can be a
	 *            system-defined or user-defined property name.
	 * @return the property value, or null if no value is set
	 */
	public Object getLocalProperty( Module module, String propName )
	{
		ElementPropertyDefn prop = getPropertyDefn( propName );
		if ( prop == null )
			return null;
		return getLocalProperty( module, prop );
	}
	/**
	 * Gets a property value given its definition. This version checks only this
	 * one object. That is, it gets the "local" property value. The property
	 * name must also be valid for this object.
	 * <p>
	 * Part of: Property value system.
	 * 
	 * @param module
	 *            the module