Bug 145724 Change version after auto convert
By the request of 136536, user get warning message to confirm the auto convert. If user select yes, the file convert to newest format, but the version is still old. If user open this file again, he'll get the warning message even the file converted.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ModuleHandle.java
String fileName = getFileName( );
		assert fileName != null;
		if ( fileName == null )
			return;
		module.prepareToSave( );
		module.getWriter( ).write( new File( getModule( ).getFileName( ) ) );
		module.onSave( );
	}
	/**
	 * Saves the design to the file name provided. The file name is saved in the
	 * design, and subsequent calls to <code>save( )</code> will save to this
	 * new name.
	 * 
	 * @param newName
	 *            the new file name
	 * @throws IOException
	 *             if the file cannot be saved
	 * 
	 * @see #save()
	 */
	public void saveAs( String newName ) throws IOException
	{
		setFileName( newName );
		save( );
	}
	/**
	 * Writes the report design to the given output stream. The caller must call
	 * <code>onSave</code> if the save succeeds.
	 * 
	 * @param out