Bug 155509 ModuleHandle findResource method does not support .properties files
There is no fileType for .properties files in IResourceLocator
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ModuleHandle.java
* @return a handle to the parameter, or <code>null</code> if the
	 *         parameter is not found
	 */
	public ParameterHandle findParameter( String name )
	{
		DesignElement element = module.findParameter( name );
		if ( element == null )
			return null;
		return (ParameterHandle) element.getHandle( element.getRoot( ) );
	}
	/**
	 * Finds a style by its name in this module. The style with the same name,
	 * which is defined the included module, will never be returned.
	 * 
	 * @param name
	 *            name of the style
	 * @return a handle to the style, or <code>null</code> if the style is not
	 *         found
	 */
	public SharedStyleHandle findNativeStyle( String name )
	{
		StyleElement style = module.findNativeStyle( name );
		if ( style == null )
			return null;
		return (SharedStyleHandle) style.getHandle( module );
	}
	/**
	 * Finds a style by its name in this module and the included modules.
	 * 
	 * @param name