enable the use of .nav-header in dropdowns per #1827

docs/assets/css/bootstrap.css

@@ -2130,27 +2130,31 @@ button.btn.small, input[type="submit"].btn.small {
   text-decoration: none;
   background-color: #eeeeee;
 }
+.nav .nav-header {
+  display: block;
+  padding: 3px 15px;
+  font-size: 11px;
+  font-weight: bold;
+  line-height: 18px;
+  color: #999999;
+  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.5);
+  text-transform: uppercase;
+}
+.nav li + .nav-header {
+  margin-top: 9px;
+}
 .nav-list {
   padding-left: 14px;
   padding-right: 14px;
   margin-bottom: 0;
 }
 .nav-list > li > a, .nav-list .nav-header {
-  display: block;
-  padding: 3px 15px;
   margin-left: -15px;
   margin-right: -15px;
   text-shadow: 0 1px 0 rgba(255, 255, 255, 0.5);
 }
-.nav-list .nav-header {
-  font-size: 11px;
-  font-weight: bold;
-  line-height: 18px;
-  color: #999999;
-  text-transform: uppercase;
-}
-.nav-list > li + .nav-header {
-  margin-top: 9px;
+.nav-list > li > a {
+  padding: 3px 15px;
 }
 .nav-list .active > a, .nav-list .active > a:hover {
   color: #ffffff;

docs/components.html

@@ -771,7 +771,9 @@
                 <li><a href="#">Another action</a></li>
                 <li><a href="#">Something else here</a></li>
                 <li class="divider"></li>
+                <li class="nav-header">Nav header</li>
                 <li><a href="#">Separated link</a></li>
+                <li><a href="#">One more separated link</a></li>
               </ul>
             </li>
           </ul>

docs/templates/pages/components.mustache

@@ -695,7 +695,9 @@
                 <li><a href="#">{{_i}}Another action{{/i}}</a></li>
                 <li><a href="#">{{_i}}Something else here{{/i}}</a></li>
                 <li class="divider"></li>
+                <li class="nav-header">Nav header</li>
                 <li><a href="#">{{_i}}Separated link{{/i}}</a></li>
+                <li><a href="#">{{_i}}One more separated link{{/i}}</a></li>
               </ul>
             </li>
           </ul>

less/navs.less

@@ -21,6 +21,21 @@
   background-color: @grayLighter;
 }
 
+// Nav headers (for dropdowns and lists)
+.nav .nav-header {
+  display: block;
+  padding: 3px 15px;
+  font-size: 11px;
+  font-weight: bold;
+  line-height: @baseLineHeight;
+  color: @grayLight;
+  text-shadow: 0 1px 0 rgba(255,255,255,.5);
+  text-transform: uppercase;
+}
+// Space them out when they follow another list item (link)
+.nav li + .nav-header {
+  margin-top: 9px;
+}
 
 
 // NAV LIST
@@ -33,21 +48,12 @@
 }
 .nav-list > li > a,
 .nav-list .nav-header {
-  display: block;
-  padding: 3px 15px;
   margin-left:  -15px;
   margin-right: -15px;
   text-shadow: 0 1px 0 rgba(255,255,255,.5);
 }
-.nav-list .nav-header {
-  font-size: 11px;
-  font-weight: bold;
-  line-height: @baseLineHeight;
-  color: @grayLight;
-  text-transform: uppercase;
-}
-.nav-list > li + .nav-header {
-  margin-top: 9px;
+.nav-list > li > a {
+  padding: 3px 15px;
 }
 .nav-list .active > a,
 .nav-list .active > a:hover {