Better UX when recovering organization emails

Fixes #291

emails/orgrecovery.html

@@ -0,0 +1,20 @@
+{% extends "base.html" %}
+
+{% block content %}
+
+<h3>Organization {{ organization }} recovery</h3>
+
+A user at {{ app_link() }} has attempted to recover organization {{ organization | user_reference }} via this email address.
+<br>
+<br>
+Please login with one of the following user accounts to access this organization:
+<ul>
+{% for admin_user in admin_usernames %}
+<li>{{ admin_user | user_reference }}</li>
+{% endfor %}
+</ul>
+<br>
+If you did not make this request, your organization has not been compromised and the user was
+not given access. Please disregard this email.
+
+{% endblock %}