iOS theme: Permanant background to attachment part of bubble

(this is to handle a quote making bubble wider, but a narrow image)

stylesheets/_ios.scss

@@ -361,10 +361,11 @@ $ios-border-color: rgba(0,0,0,0.1);
     }
   }
 
-  // We don't add a background to the attachments div unless there's also text. The
-  //   browser doesn't always clip the border-radius properly, so we get a partial-pixel
-  //   halo effect.
-  .outgoing .with-tail.tail-wrapper {
+  // The browser doesn't always clip the border-radius properly, so we can get a
+  //   partial-pixel halo effect. Sadly, it is still needed because a quote can force the
+  //   bubble wider than an attached image, and we need a background color on the bottom
+  //   section if the image doesn't cover it all.
+  .outgoing .tail-wrapper {
     .attachments {
       background-color: $blue;
     }
@@ -377,13 +378,15 @@ $ios-border-color: rgba(0,0,0,0.1);
     }
   }
 
-  .incoming .with-tail.tail-wrapper {
-    &:before {
-      left: -1px;
-      background-color: white;
-    }
-    &:after {
-      left: -6px;
+  .incoming .tail-wrapper {
+    &.with-tail {
+      &:before {
+        left: -1px;
+        background-color: white;
+      }
+      &:after {
+        left: -6px;
+      }
     }
 
     .inner-bubble {

ts/components/conversation/Quote.md

@@ -814,6 +814,44 @@ const View = Whisper.MessageView;
 </util.ConversationContext>
 ```
 
+#### Quote, portrait image attachment
+
+```jsx
+const outgoing = new Whisper.Message({
+  type: 'outgoing',
+  sent_at: Date.now() - 18000000,
+  quote: {
+    text: 'How many ferrets do you have?',
+    author: '+12025550011',
+    id: Date.now() - 1000,
+  },
+  attachments: [{
+    data: util.portraitYellow,
+    fileName: 'pi.gif',
+    contentType: 'image/gif',
+  }],
+});
+const incoming = new Whisper.Message(Object.assign({}, outgoing.attributes, {
+  source: '+12025550011',
+  type: 'incoming',
+  quote: Object.assign({}, outgoing.attributes.quote, {
+    author: '+12025550005',
+  }),
+}));
+const View = Whisper.MessageView;
+<util.ConversationContext theme={util.theme}>
+  <util.BackboneWrapper
+    View={View}
+    options={{ model: incoming }}
+  />
+  <util.BackboneWrapper
+    View={View}
+    options={{ model: outgoing }}
+  />
+</util.ConversationContext>
+```
+
+
 #### Quote, video attachment
 
 ```jsx