Renamed the Rates tab to Rate History to match the comp. #1915

app/views/users/_rates.html.erb

@@ -1,4 +1,4 @@
-<h1>Rate History</h1>
+<h1><%= l(:rate_label_rate_history) %></h1>
 <%# TODO: Refactor out of the view once there is a hook in the controller (Post 0.8.0). %>
 <%# Can't expect everyone to upgrade at the moment %>
 <% @rates = Rate.history_for_user(@user) %>