Added OpenID example

examples/openidexample/templates/login.html

@@ -0,0 +1,12 @@
+{% extends "layout.html" %}
+{% block title %}Sign in{% endblock %}
+{% block body %}
+  <h2>Sign in</h2>
+  <form action="" method=post>
+    <p>
+      OpenID:
+      <input type=text name=openid size=30>
+      <input type=submit value="Sign in">
+      <input type=hidden name=next value="{{ next_url }}">
+  </form>
+{% endblock %}