[rc] Navbar with link buttons and icons

navbar-links-icons.html

<header class="bar bar-nav">
  <button class="btn btn-link btn-nav pull-left">
    <span class="icon icon-left-nav"></span>
    Left
  </button>
  <button class="btn btn-link btn-nav pull-right">
    Right
    <span class="icon icon-right-nav"></span>
  </button>
  <h1 class="title">Title</h1>
</header>