Fix in-page links (#509)

Also:

- Remove old breadcrumb code
- Remove the survey ad

Fixes canjs/canjs#4826

Author: chasenlehara

sidebar/demo.stache

@@ -1,12 +1,10 @@
 <div id="everything">
   <div class="column" id="left">
-    <div class="bottom">
-      <canjs-sidebar
-        class="nav-menu"
-        searchMap:from="searchMap"
-        selectedPageName:bind="selectedPageName"
-      />
-    </div>
+    <canjs-sidebar
+      class="nav-menu"
+      searchMap:from="searchMap"
+      selectedPageName:bind="selectedPageName"
+    />
   </div>
 </div>
 

sidebar/utils.js

@@ -8,7 +8,7 @@ module.exports = {
     );
   },
   safeInset: {
-    bottom: 49,
-    top: 101
+    bottom: 0,
+    top: 53 // @brand-height
   }
 };

sidebar/view-callbacks.js

@@ -2,7 +2,7 @@ var canViewCallbacks = require('can-view-callbacks');
 var utils = require('./utils');
 
 canViewCallbacks.attr('selected-in-sidebar', function(element) {
-  var containerElement = document.querySelector('#left .bottom');
+  var containerElement = document.querySelector('#left');
   if (!containerElement) {
     return;
   }