theming mobile layout to mirror standard layout styling

the span with class m_t and m_t_d and its styling are no longer needed
  mobile todo lists need to be wrapped in ul element. fixing up missing or unclosed

app/views/contexts/mobile_show_context.rhtml

@@ -7,10 +7,8 @@ if not @not_done.empty?
   %>
 <h2><%=@context.name%></h2>
 <ul class="c">
-<table cellpadding="0" cellspacing="0" border="0" class="c">
 <%= render :partial => "todos/mobile_todo",
            :collection => @not_done,
            :locals => { :parent_container_type => "context" }-%>
-</table>
 </ul>
 <% end -%>