remove deprecated warnings from docs

docs/_includes/components/dropdowns.html

@@ -40,10 +40,6 @@
     <h4>May require additional positioning</h4>
     <p>Dropdowns are automatically positioned via CSS within the normal flow of the document. This means dropdowns may be cropped by parents with certain <code>overflow</code> properties or appear out of bounds of the viewport. Address these issues on your own as they arise.</p>
   </div>
-  <div class="bs-callout bs-callout-warning">
-    <h4>Deprecated <code>.pull-right</code> alignment</h4>
-    <p>As of v3.1.0, we've deprecated <code>.pull-right</code> on dropdown menus. To right-align a menu, use <code>.dropdown-menu-right</code>. Right-aligned nav components in the navbar use a mixin version of this class to automatically align the menu. To override it, use <code>.dropdown-menu-left</code>.</p>
-  </div>
 {% highlight html %}
 <ul class="dropdown-menu dropdown-menu-right" role="menu" aria-labelledby="dLabel">
   ...

docs/_includes/components/navs.html

@@ -3,6 +3,25 @@
 
   <p class="lead">Navs available in Bootstrap have shared markup, starting with the base <code>.nav</code> class, as well as shared states. Swap modifier classes to switch between each style.</p>
 
+  <h2 id="nav-basic">Basic nav</h2>
+  <p>Uses no modifier classes. No supported active state by default, given highly customizable nature of nav styles.</p>
+  <div class="bs-example">
+    <ul class="nav" role="tablist">
+      <li>
+        <a href="#">Active</a>
+      </li>
+      <li>
+        <a href="#">Link</a>
+      </li>
+      <li>
+        <a href="#">Another link</a>
+      </li>
+      <li class="disabled">
+        <a href="#">Disabled</a>
+      </li>
+    </ul>
+  </div>
+
   <h2 id="nav-tabs">Tabs</h2>
   <p>Note the <code>.nav-tabs</code> class requires the <code>.nav</code> base class.</p>
   <div class="bs-example">