Bug 37197 Basepath for relative pathes in JAR-exporter
The basepath for the JAR-exporter is the eclipse-install-directory. I prefer it to be the root of the project (the description is saved in), so that relative pathes end inside the project. Now: <jardesc> <jar path="workspace/projectdir/jar.jar"/> Desired: <jardesc> <jar path="jar.jar"/> Reason: To make the jardesc-files portable for shared projects
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/jarpackager/JarPackageWizardPage.java
* <code>internalSaveWidgetValues</code>.
	 */
	public final void saveWidgetValues() {
		
		IDialogSettings settings= getDialogSettings();
		if (settings != null) {
			String[] directoryNames= settings.getArray(STORE_DESTINATION_NAMES);
			if (directoryNames == null)
				directoryNames= new String[0];
			directoryNames= addToHistory(directoryNames, getDestinationValue());
			settings.put(STORE_DESTINATION_NAMES, directoryNames);
			settings.put(STORE_EXPORT_CLASS_FILES, fJarPackage.areClassFilesExported());
			settings.put(STORE_EXPORT_JAVA_FILES, fJarPackage.areJavaFilesExported());
			
			settings.put(STORE_COMPRESS, fJarPackage.isCompressed());
			settings.put(STORE_OVERWRITE, fJarPackage.allowOverwrite());
		}
		
		internalSaveWidgetValues();
	}
	/**
	 * Hook method for subclasses to persist their settings.
	 */
	protected void internalSaveWidgetValues() {
	}
	/**
	 *	Hook method for restoring widget values to the values that they held
	 *	last time this wizard was used to completion.
	 */
	protected void restoreWidgetValues() {