add django-registration-redux and use some of it

for the moment this is for the password change url used in the auth
dropdown, and a better login page, but this might become other stuff
eventually too. the signup page exists and is linked to, even if i don't
have a great reason for this to exist

bunch of templates added now to support the intentional and
unintentional stuff

dr_botzo/templates/registration/login.html

@@ -0,0 +1,47 @@
+{% extends "registration/registration_base.html" %}
+{% load i18n %}
+{% load bootstrap3 %}
+
+{% block title %}{% trans "Log in" %}{% endblock %}
+
+{% block registration_content %}
+    <form role="form" method="post">
+        {% csrf_token %}
+        {% bootstrap_form form %}
+        <input type="hidden" name="next" value="{{ next }}" />
+        {% buttons submit='Log In' reset='Cancel' layout='horizontal' %}{% endbuttons %}
+    </form>
+    <div class="extra">
+        <p>{% trans "Forgot your password?" %} <a href="{% url 'auth_password_reset' %}">{% trans "Reset it" %}</a>.
+            {% trans "Not a member?" %} <a href="{% url 'registration_register' %}">{% trans "Register" %}</a>.</p>
+    </div>
+{% endblock %}
+
+
+{% comment %}
+**registration/login.html**
+
+It's your responsibility to provide the login form in a template called
+registration/login.html by default. This template gets passed four
+template context variables:
+
+``form``
+    A Form object representing the login form. See the forms
+    documentation for more on Form objects.
+
+``next``
+    The URL to redirect to after successful login. This may contain a
+    query string, too.
+
+``site``
+    The current Site, according to the SITE_ID setting. If you don't
+    have the site framework installed, this will be set to an instance
+    of RequestSite, which derives the site name and domain from the
+    current HttpRequest.
+
+``site_name``
+    An alias for site.name. If you don't have the site framework
+    installed, this will be set to the value of
+    request.META['SERVER_NAME']. For more on sites, see The
+    "sites" framework.
+{% endcomment %}