BLUEBUTTON-372: NAVBAR needs edit for PROD (#631)

api.bluebutton.cms.gov should not offer login or signup on the site.
Disable Login and redirect signup to sandbox.bluebutton.cms.gov/v1/accounts/create

Author: ekivemark

templates/include/top-nav-responsive.html

@@ -57,9 +57,12 @@ <h5 class="sr-only" id="desktop-nav">Main site navigation</h5>
                       <li><a href="{% url 'mylogout' %}">Logout <i class="fa fa-sign-out"></i></a></li>
 
               {% else %}
-                       
-                      <li><a href="{% url 'mfa_login' %}"> <i class="fa fa-user"></i>  Login</a></li>
-                      <li><a href="{% url 'accounts_create_account' %}"> <i class="fa fa-plus"></i>  Signup</a></li>
+                      {% if 'apps.testclient' in settings.INSTALLED_APPS %}
+                          <li><a href="{% url 'mfa_login' %}"> <i class="fa fa-user"></i>  Login</a></li>
+                          <li><a href="{% url 'accounts_create_account' %}"> <i class="fa fa-plus"></i>  Signup</a></li>
+                      {% else %}
+                          <li><a href="https://sandbox.bluebutton.cms.gov/v1/accounts/create"> <i class="fa fa-plus"></i>  Signup</a></li>
+                      {%  endif %}
               {% endif %}
 
             <li>