Add of the fonts for the templates

I added the fonts used in the original template in rails and updated the
stylesheet accordingly. I commented as well some code in the header
template that isn't used right now.
Signed-off-by: Matthieu Berjon <matthieu.berjon@inria.fr>

django/static/css/allgo.scss

+@font-face {
+  font-family: Roboto;
+  src: url(/static/fonts/Roboto-Regular.ttf);
+}
+@font-face {
+  font-family: Offside;
+  src: url(/static/fonts/Offside-Regular.ttf);
+}
+
 $fonts_body : Roboto, sans-serif;
 $fonts_big_title: Offside, cursive;
 

django/templates/partials/_header.html

@@ -34,7 +34,7 @@
           {% endif %}
           <li class="{% if active_tab == 'my-apps' %} active{% endif %}"><a href="#">my apps</a></li>
 
-
+        {% comment %}
         <% if user_signed_in? %>
           <li class="dropdown">
             <%# the hepldesk is accessible only by inria users %>
@@ -83,6 +83,7 @@
             <%= link_to "<i class=\"glyphicon glyphicon-glyphicon glyphicon-pencil\"></i> Sign Up".html_safe, new_user_registration_path %>
           </li>
         <% end %>
+        {% endcomment %}
       </ul>
     </div>
   </div>