tons of docs cleanup in css, adding subnav to official components

docs/templates/pages/scaffolding.mustache

@@ -4,7 +4,7 @@
   <h1>{{_i}}Scaffolding{{/i}}</h1>
   <p class="lead">{{_i}}Bootstrap is built on a responsive 12-column grid. We've also included fixed- and fluid-width layouts based on that system.{{/i}}</p>
   <div class="subnav">
-    <ul class="nav nav-pills">
+    <ul class="nav">
       <li><a href="#global">{{_i}}Global styles{{/i}}</a></li>
       <li><a href="#gridSystem">{{_i}}Grid system{{/i}}</a></li>
       <li><a href="#fluidGridSystem">{{_i}}Fluid grid system{{/i}}</a></li>
@@ -399,12 +399,12 @@
     </thead>
     <tbody>
       <tr>
-        <td>{{_i}}Smartphones{{/i}}</td>
+        <td>{{_i}}Phones{{/i}}</td>
         <td>480px and below</td>
         <td class="muted" colspan="2">{{_i}}Fluid columns, no fixed widths{{/i}}</td>
       </tr>
       <tr>
-        <td>{{_i}}Smartphones to tablets{{/i}}</td>
+        <td>{{_i}}Phones to tablets{{/i}}</td>
         <td>767px and below</td>
         <td class="muted" colspan="2">{{_i}}Fluid columns, no fixed widths{{/i}}</td>
       </tr>