add aspects_list handlebar template

app/assets/templates/aspects-list_tpl.jst.hbs

+<ul id="aspects_list" class="sub_nav">
+  <a class="toggle_selector" href="#">
+    Select All o no
+  </a>
+  <li>
+    <a class="new_aspect" href="/aspects/new" rel="facebox">t('.add_an_aspect')</a>
+  </li>
+</ul>