Revert "remove dead magicontrols styles"

This reverts commit 8185d55cd6e3261d360bd88eea37845bfdc13b3d.

These styles were necessary for distinguishing which things show up
on the summary. We lost timestamps and reply counts with this change.

h/css/common.scss

@@ -639,6 +639,8 @@ blockquote {
 
 //MAGICONTROLS////////////////////////////////
 .magicontrols {
+  background-color: $bodyBackground;
+
   & > * {
     display: inline-block;
     padding-right: .8em;
@@ -686,6 +688,12 @@ blockquote {
 
   // Things not shown in the summary view
   .magicontrols {
-    display: none;
+    .share-icon, .reply-icon, .pull-right {
+      display: none;
+    }
+
+    &.pull-right {
+      display: none;
+    }
   }
 }