Bug 146159 [Regression]Changing font operation doesn't work other than the first time
Description: The first time changing operation can work well. However, Change it again, it won't work. Steps: 1.Insert lable/text to layout or master page 2.Change the font from serif to cursive, it works well 3.Change the font again Result: The action doesn't work Additional infor: build number:200606080632
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/util/UIUtil.java
* Includes the library into within the current module.
	 * 
	 * @param libraryHandle
	 *            the library to include.
	 * @return true if it included successfully, or false if the operation
	 *         failed.
	 */
	public static boolean includeLibrary( LibraryHandle libraryHandle )
			throws DesignFileException, SemanticException
	{
		return includeLibrary( SessionHandleAdapter.getInstance( )
				.getReportDesignHandle( ), libraryHandle );
	}
	/**
	 * Returns the name for the file
	 * 
	 * @param filePath
	 *            the full path of the file
	 * @return Returns the name of the file
	 */
	public static String getSimpleFileName( String filePath )
	{
		return new File( filePath ).getName( );
	}
	/**
	 * Returns the namespace of the library for inculde
	 * 
	 * @param handle
	 *            the module handle to include the library
	 * @param libraryPath