Fix swarm with no hosts

app/components/columns-section/component.js

@@ -30,6 +30,10 @@ export default Ember.Component.extend(ThrottledResize, {
   }.property('columnWidth','columnFudge'),
 
   onResize: function() {
+    if ( this.isDestroyed || this.isDestroying ) {
+      return;
+    }
+
     try {
       let elem         = this.$();
       let sectionWidth = $('#application').width(); // On first call the pods aren't rendered yet, so approximate with the screen width

app/containers/route.js

@@ -6,7 +6,7 @@ export default Ember.Route.extend({
     return Ember.RSVP.hash({
       instances: store.findAll('instance'),
       hosts: store.findAll('host'),
-    }).then((hash) => {
+    }).then(() => {
       return store.all('container');
     });
   },

app/host/ports/route.js

@@ -7,8 +7,7 @@ export default Ember.Route.extend({
 
     return Ember.RSVP.all([
       store.findAll('service'),
-      store.findAll('container'),
-      store.findAll('virtualmachine'),
+      store.findAll('instance'),
     ]).then(() => {
       return host;
     });

app/swarm-tab/console/route.js

@@ -15,10 +15,6 @@ export default Ember.Route.extend({
           instance: inst,
         });
       }
-      else
-      {
-        return Ember.RSVP.reject('Unable to find an active Swarm container');
-      }
     });
   },
 });

app/swarm-tab/console/template.hbs

@@ -1,14 +1,16 @@
-<section class="header">
-  <h1 style="display: block">{{t 'dockerCLI.header'}}</h1>
-</section>
+{{#if model.instance}}
+  <section class="header">
+    <h1 style="display: block">{{t 'dockerCLI.header'}}</h1>
+  </section>
 
-<section class="well">
-  {{container-shell
-    classNames="inline-block"
-    command=model.command
-    instance=model.instance
-    cols=120
-    rows=30
-    showProtip=false
-  }}
-</section>
+  <section class="well">
+    {{container-shell
+      classNames="inline-block"
+      command=model.command
+      instance=model.instance
+      cols=120
+      rows=30
+      showProtip=false
+    }}
+  </section>
+{{/if}}