Bug 196272 Text position is incorrect in postscript and ppt.
Text position need to be ajusted according to baseline position.
engine/org.eclipse.birt.report.engine.emitter.postscript/src/org/eclipse/birt/report/engine/emitter/postscript/PostscriptWriter.java
gRestore( );
	}
	/**
	 * Disposes of this graphics context once it is no longer referenced.
	 * 
	 * @see #dispose
	 */
	public void finalize( )
	{
		dispose( );
	}
	public void dispose( )
	{
		out.println( "%dispose" );
	}
	public Color getColor( )
	{
		return clr;
	}
	public Font getFont( )
	{
		return font;
	}
	public void scale( float sx, float sy )
	{
		out.print( sx );
		out.print( " " );
		out.print( sy );
		out.println( " scale" );
	}