title: ionic-item color and href not working
body: <p>I started a ionic project based on the sidemenu template. I am trying to change the background color for each element of the side menu (I would like every item to be of a different color).</p>
  
  <p>I tried to add a ionic color class:</p>
  
  <pre><code>&lt;ion-side-menu side="left"&gt;
      &lt;ion-header-bar class="bar-stable"&gt;
        &lt;h1 class="title"&gt;Left&lt;/h1&gt;
      &lt;/ion-header-bar&gt;
      &lt;ion-content&gt;
        &lt;ion-list&gt;
          &lt;ion-item class="positive-bg" nav-clear menu-close ng-click="login()"&gt;
            Login
          &lt;/ion-item&gt;
          &lt;ion-item class="calm-bg" nav-clear menu-close href="#/app/search"&gt;
            Search
          &lt;/ion-item&gt;
          &lt;ion-item class="assertive-bg" nav-clear menu-close href="#/app/browse"&gt;
            Browse
          &lt;/ion-item&gt;
          &lt;ion-item nav-clear menu-close class="balanced-bg" href="#/app/playlists"&gt;
            Playlists
          &lt;/ion-item&gt;
        &lt;/ion-list&gt;
      &lt;/ion-content&gt;
  </code></pre>
  
  <p>It works well on the Login element but not on the other elements. Removing the href attribute on other elements works... How can I have the background color and the href element?</p>