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/device/PostscriptPageDevice.java
{
	private PostscriptWriter writer;
	private PostscriptPage currentPage;
	public PostscriptPageDevice( OutputStream output, String title )
			throws Exception
	{
		BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(
				output );
		writer = new PostscriptWriter( bufferedOutputStream, title );