Bug 152828 Add the projectFolder property on module
When user doesn't set the resource folder path in designer, there should be a default working path for Birt to manage the report design and find the related resources. A new property should be added on Module: name: projectFolder type:URL This property only can be given from the open design method from session but should not be set after the module initialized. Concern about the backward compatiblity issue, a new method will be added. Open design with a config argument.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ModuleHandle.java
}
	/**
	 * Returns all page handles that this modules and the included modules
	 * contain.
	 * 
	 * @return all page handles that this modules and the included modules
	 *         contain.
	 */
	public List getAllPages( )
	{
		List elementList = module.getNameSpace( Module.PAGE_NAME_SPACE )
				.getElements( );
		return generateHandleList( elementList );
	}
	/**
	 * Returns all parameter handles that this modules.
	 * 
	 * @return all parameter handles that this modules.
	 */
	public List getAllParameters( )
	{
		List elementList = module.getNameSpace( Module.PARAMETER_NAME_SPACE )
				.getElements( );
		return generateHandleList( elementList );
	}
	/**
	 * Generates a list of element handles according to the given element list.
	 * Each content in the return list is generated use
	 * <code>element.getHandle( Module )</code>
	 *