Add the project_id to the Calendar link to month.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@4045 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/views/calendars/show.html.erb

@@ -10,7 +10,7 @@
 </fieldset>
 
 <p style="float:right;">
-  <%= link_to_previous_month(@year, @month) %> | <%= link_to_next_month(@year, @month) %>
+  <%= link_to_previous_month(@year, @month, :project => @project) %> | <%= link_to_next_month(@year, @month, :project => @project) %>
 </p>
 
 <p class="buttons">