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
startY = transformY( startY );
		endY = transformY( endY );
		out.print( startX );
		out.print( " " );
		out.print( startY );
		out.print( " moveto " );
		out.print( endX );
		out.print( " " );
		out.print( endY );
		out.println( " lineto stroke" );
	}
	/**
	 * Draws a line from (startX, startY) to (endX, endY) with specified line
	 * width, color and line style.
	 * 
	 * Line style can be "dotted", "dash", and "double".
	 * 
	 * @param startX
	 *            the x coordinate of start point.
	 * @param startY
	 *            the y coordinate of start point.
	 * @param endX
	 *            the x coordinate of end point.
	 * @param endY
	 *            the y coordinate of end point.
	 * @param width
	 *            the line width.
	 * @param color
	 *            the color.
	 * @param lineStyle