overhaul the entire tabs component structure and docs; remove side nav and make it a nav list to build on new .nav base class

lib/navbar.less

@@ -135,7 +135,7 @@
 
 // Nav for navbar and topbar
 // ul.nav for all topbar based navigation to avoid inheritance issues and over-specificity
-.nav {
+.navbar .nav {
   position: relative;
   left: 0;
   display: block;
@@ -146,7 +146,6 @@
     float: left;
   }
   a {
-    display: block;
     float: none;
     padding: 10px 10px 11px;
     line-height: 19px;
@@ -182,7 +181,7 @@
       border: 0;
     }
   }
-  // Dropdowns within the .nav
+/*  // Dropdowns within the .nav
   .dropdown-toggle:hover,
   .dropdown.open .dropdown-toggle {
     background: #444;
@@ -213,5 +212,5 @@
       background-color: #222;
       border-color: #444;
     }
-  }
+  }*/
 }