more user handling features of flask-security activated

Now users can recover their passwords and change them while
logged in.

app/templates/security/register_user.html

@@ -2,6 +2,7 @@
 {% from "security/_macros.html" import render_field_with_errors, render_field %}
 
 {% block body %}
+<h1>Register User</h1>
 <form class='form-horizontal' action="{{ url_for_security('register') }}" method="POST" name="register_user_form">
     {{ register_user_form.hidden_tag() }}
     {{ render_field_with_errors(register_user_form.email) }}