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.ppt/src/org/eclipse/birt/report/engine/emitter/ppt/PPTWriter.java
/**
	 * Output stream where postscript to be output.
	 */
	
	private OutputStream pptOutput = null;
	protected int currentPageNum = 0;
	private int shapeCount = 0;
	protected float pageWidth, pageHeight;
	
	private Map imageNames = new HashMap( );
	private List imageTitles = new ArrayList( );
	
	private Map imageExtensions = new HashMap( );
	
	private Map fileNamesLists = new TreeMap( );
	private Map currentImageData = new HashMap( );;
	public PPTWriter( OutputStream output )
	{
		
		pptOutput = output;
	}
	/**
	 * Creates a PPT Document.
	 * 
	 */
	public void start( )
	{
		if ( !imageNames.isEmpty( ) )
		{
			imageNames.clear( );