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( );
	}
	private void gRestore( )
	{
		out.println( "grestore" );
	}
	private void gSave( )
	{
		out.println( "gsave" );
	}
	private void setLineWidth( float lineWidth )
	{
		out.print( lineWidth );
		out.println( " setlinewidth" );
	}
	private void setDashLine( float lineWidth )
	{
		int width = (int) Math.ceil( lineWidth );
		out.println( "[" + 3 * width + " " + 2 * width + "] 0 setdash" );
	}
	private void setDottedLine( float lineWidth )
	{
		int width = (int) Math.ceil( lineWidth );
		out.println( "[" + width + "] 0 setdash" );
	}
	private Map trueTypeFontWriters = new HashMap( );
	public void drawRect( int x, int y, int width, int height )
	{
		out.println( "%drawRect" );
		drawRect( x, y, width, height, false );