Add signup link, customize templates

templates/cas_server/warn.html

@@ -0,0 +1,11 @@
+{% extends "cas_server/base.html" %}
+{% load static %}
+{% load i18n %}
+
+{% block content %}
+      <form class="form-signin" method="post">
+{% csrf_token %}
+{% include "cas_server/form.html" %}
+<button class="btn btn-primary btn-block btn-lg" type="submit">{% trans "Connect to the service" %}</button>
+      </form>
+{% endblock %}