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
pptOutput.write( "--___Actuate_Content_Boundary___\n".getBytes( ) ); 
		pptOutput.write( ( "Content-Location: file:///C:/___Actuate___/"
				+ (String) imageNames.get( imagekey ) + "\n" ).getBytes( ) );
		pptOutput.write( "Content-Transfer-Encoding: base64\n".getBytes( ) );
		pptOutput.write( ( "Content-Type: image/"
				+ (String) imageExtensions.get( imagekey ) + "\n\n" ).getBytes( ) );
	}
	private void generateImageBytes( String imageTitle, byte[] imageData )
			throws IOException
	{
		exportImageHeader( imageTitle );
		Base64 base = new Base64( );
		pptOutput.write( base.encode( imageData ) );
	}
	/**
	 * Creates a new page.
	 * 
	 * @param page
	 *            the PageArea specified from layout
	 */
	public void newPage( float pageWidth, float pageHeight,
			Color backgroundColor )
	{
		currentPageNum++;
		currentImageData.clear( );
		imageTitles.clear( );
		this.pageWidth = pageWidth;
		this.pageHeight = pageHeight;
		try
		{