Reworks messages so they display if they have multiple tags applied.

Change-Id: If53f6b51d52edb846861e7df12dd7ba891ec3ed6

horizon/horizon/templates/horizon/_messages.html

@@ -1,21 +1,21 @@
 {% load i18n %}
 {% for message in messages %}
-  {% if message.tags == "info" %}
+  {% if "info" in message.tags %}
     <div class="alert-message info">
       <p><strong>{% trans "Info: " %}</strong>{{ message }}</p>
     </div>
   {% endif %}
-  {% if message.tags == "warning" %}
+  {% if "warning" in message.tags %}
     <div class="alert-message warning">
       <p><strong>{% trans "Warning: " %}</strong>{{ message }}</p>
     </div>
   {% endif %}
-  {% if message.tags == "success" %}
+  {% if "success" in message.tags %}
     <div class="alert-message success">
       <p><strong>{% trans "Success: " %}</strong>{{ message }}</p>
     </div>
   {% endif %}
-  {% if message.tags == "error" %}
+  {% if "error" in message.tags %}
     <div class="alert-message error">
       <p><strong>{% trans "Error: " %}</strong>{{ message }}</p>
     </div>

horizon/horizon/views/auth_forms.py

@@ -87,8 +87,10 @@ class Login(forms.SelfHandlingForm):
                                              data['username'],
                                              data['password'])
                 except keystone_exceptions.Unauthorized:
+                    LOG.exception("Failed login attempt for %s."
+                                  % data['username'])
                     messages.error(request, _('Bad user name or password.'),
-                            extra_tags="login")
+                                   extra_tags="login")
                     return
 
                 # Unscoped token