Bug 206093 bar chart: title of y axis is not aligned according to the y axe.
Build ID: v20070924-0630 Steps To Reproduce: 1. Create a bar chart 2. For y axis enter a Title and set the alignment to center 3. See the chart, the y axis title is not aligned according to the y axe; it is center aligned with the height of the chart. More information: see attached chart image example: the first image at the top is how Birt aligned the y axis label and the second image at the bottom is the proposition of aligment according to the y axe
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/AxesRenderHelper.java
{
		/**
		 * Initializes when rendering an axes
		 * 
		 * @throws ChartException
		 */
		void initialize( ) throws ChartException;
		/**
		 * Last method of rendering an axes
		 * 
		 * @throws ChartException
		 */
		void close( ) throws ChartException;
		/**
		 * Handles computation before rendering each axes tick