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/PostscriptPage.java
public PostscriptPage( PostscriptWriter writer )
	{
		this.writer = writer;
		this.isDisposed = false;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.emitter.postscript.page.IPageDevice#setPageSize(float,
	 *      float)
	 */
	void setPageSize( int pageWidth, int pageHeight )
	{
		writer.startPage( convertToPoint( pageWidth ),
				convertToPoint( pageHeight ) );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.emitter.postscript.page.IPageDevice#dispose()
	 */
	public void dispose( )
	{
		if ( !isDisposed )
		{
			writer.endPage( );
			isDisposed = true;
		}
	}
	/*