In LoginServlet.java, we set these cookies, but they could
		easily be set with JavaScript in the loginForm.jsp page.
		
		View LoginServlet.java source
		
		Then in BreadCrumbFilter.java (which maps to url-pattern "/*"), we check
		to see if these cookies exists.  If so, we redirect to j_security_check
		to auto-login the user.
		
		View BreadCrumbFilter.java source