Bug 54548 [About] About dialog should obtain info from IProduct and IBundleGroup instead of platform configuration
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/AboutPluginsDialog.java
* info to show for that plugin.
	 *
	 * @param isSelected whether there is a selection in the table
	 */
	protected void setMoreButtonEnablement(boolean isSelected) {
		moreInfo.setEnabled(isSelected && selectionHasInfo());
	}
	/**
	 * Check if the currently selected plugin has additional
	 * information to show.
	 * 
	 * @return true if the selected plugin has additional info available to display
	 */
	private boolean selectionHasInfo(){
			TableItem[] items = vendorInfo.getSelection();
			if (items.length == 0)
				return false;
			int i = vendorInfo.getSelectionIndex();
			IPluginDescriptor desc = info[i];
			URL infoURL = desc.find(new Path(PLUGININFO));
			if (infoURL == null && IDEWorkbenchPlugin.DEBUG) {
				
				IDEWorkbenchPlugin.log("Problem reading plugin info for: " + desc.getLabel()); 
			}
			return infoURL != null;
	}
	/**
	 * Create the button to provide more info on the selected plugin.
	 *
	 * @return true if there is an item selected in the table, false otherwise