Adds noindex,noarchive robots meta tag on form pages (#7582).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@5443 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/views/issues/edit.rhtml

@@ -1,3 +1,6 @@
 <h2><%=h "#{@issue.tracker.name} ##{@issue.id}" %></h2>
 
 <%= render :partial => 'edit' %>
+<% content_for :header_tags do %>
+    <%= robot_exclusion_tag %>
+<% end %>

app/views/issues/new.rhtml

@@ -23,4 +23,5 @@
 
 <% content_for :header_tags do %>
     <%= stylesheet_link_tag 'scm' %>
+    <%= robot_exclusion_tag %>
 <% end %>