Applied the flash notices patch by Matt Jones (slightly edited).

flash[:notice] and flash[:error] are now used for notice/error messages.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@600 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/wiki_controller.rb

@@ -73,7 +73,7 @@ class WikiController < ApplicationController
     end
   rescue ActiveRecord::StaleObjectError
     # Optimistic locking exception
-    flash[:notice] = l(:notice_locking_conflict)
+    flash[:error] = l(:notice_locking_conflict)
   end
   
   # show page history