Bug 187213 Provid a writer to serialize design in document without any white space.
Add a new writer for serialize design in document without any withe space.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/util/XMLWriter.java
*/
	public void rgbAttribute( String attrName, int rgb )
	{
		assert elementActive;
		checkAttribute( );
		out.print( " " );  
		out.print( attrName );
		out.print( "=\"" );  
		out.print( StringUtil.toRgbText( rgb ) );
		out.print( "\"" );  
	}
	/**
	 * Returns the line number.
	 * 
	 * @return the line number
	 */
	public int getLineCounter( )
	{
		return lineCounter;
	}
	/**
	 * Prints '\n', and plus the line conter.
	 */
	private void printLine( )
	{
		out.print( '\n' );
		if ( markLineNumber )
			lineCounter++;
	}
}