Empty meta description for the login page.

templates/accounts/login.html

@@ -3,6 +3,8 @@
 
 {% block title %}Sign In - {% site_name %}{% endblock %}
 
+{% block description %}{% endblock %}
+
 {% block content %}
 <div class="row">
     <div class="col-xs-10 col-xs-offset-1 col-sm-12 col-sm-offset-0 col-lg-8 col-lg-offset-2">