show "no data" label when there's nothing to display on changelog and roadmap

git-svn-id: http://redmine.rubyforge.org/svn/trunk@255 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/views/projects/changelog.rhtml

@@ -13,6 +13,8 @@
 <% end %>
 </div>
 
+<% if @fixed_issues.empty? %><p><i><%= l(:label_no_data) %></i></p><% end %>
+
 <% ver_id = nil
    @fixed_issues.each do |issue| %>   
     <% unless ver_id == issue.fixed_version_id %>

app/views/projects/roadmap.rhtml

@@ -13,6 +13,8 @@
 <% end %>
 </div>
 
+<% if @versions.empty? %><p><i><%= l(:label_no_data) %></i></p><% end %>
+
 <% @versions.each do |version| %>   
     <h3 class="icon22 icon22-package"><%= version.name %></h3>
     <p><%= format_date(version.effective_date) %><br />