Status: apply default style by default

The status 'aborted' occurs when a job is manually cancelled in Jenkins.
The switch to set the css class was not taking in account.

Instead of hardcoding all possibilities, default to 'label-default'
style whenever a status is not accounted for.

Change-Id: I580553aadb297830faec93526a73f931390ce450
diff --git a/etc/status/public_html/jquery.zuul.js b/etc/status/public_html/jquery.zuul.js
index 9df44ce..d973948 100644
--- a/etc/status/public_html/jquery.zuul.js
+++ b/etc/status/public_html/jquery.zuul.js
@@ -148,11 +148,9 @@
                     case 'skipped':
                         $status.addClass('label-info');
                         break;
-                    case 'in progress':
-                    case 'queued':
-                    case 'lost':
+                    // 'in progress' 'queued' 'lost' 'aborted' ...
+                    default:
                         $status.addClass('label-default');
-                        break;
                 }
                 $status.text(result);
                 return $status;