Disable password reset as temporary fix to vulnerability (#396)

Disabled password reset and left message notifying user of problem. In response to CVE-2019-19844

RIGS/templates/RIGS/password_reset_disable.html

@@ -0,0 +1,9 @@
+{% extends 'base_rigs.html' %}
+
+{% block title %}Password Reset Disabled{% endblock %}
+
+{% block content %}
+<h1>Password reset is disabled</h1>
+<p> We are very sorry for the inconvenience, but due to a security vulnerability, password reset is currently disabled until the vulnerability can be patched.</p>
+<p> If you are locked out of your account, please contact an administrator and we can manually perform a reset</p>
+{% endblock %}