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
*
	 *	@return java.lang.String
	 */
	protected String getDestinationLabel() {
		return JarPackagerMessages.getString("JarPackageWizardPage.destination.label"); 
	}
	/**
	 *	Answer the suffix that files exported from this wizard must have.
	 *	If this suffix is a file extension (which is typically the case)
	 *	then it must include the leading period character.
	 *
	 *	@return java.lang.String
	 */
	protected String getOutputSuffix() {
		return "." + JarPackagerUtil.JAR_EXTENSION; 
	}
	/**
	 * Returns an iterator over this page's collection of currently-specified 
	 * elements to be exported. This is the primary element selection facility
	 * accessor for subclasses.
	 *
	 * @return an iterator over the collection of elements currently selected for export
	 */
	protected Iterator getSelectedResourcesIterator() {
		return fInputGroup.getAllCheckedListItems();
	}
	/**
	 * Persists resource specification control setting that are to be restored
	 * in the next instance of this page. Subclasses wishing to persist
	 * settings for their controls should extend the hook method