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/roles_controller.rb

@@ -58,7 +58,7 @@ class RolesController < ApplicationController
   def destroy
     @role = Role.find(params[:id])
     unless @role.members.empty?
-      flash[:notice] = 'Some members have this role. Can\'t delete it.'
+      flash[:error] = 'Some members have this role. Can\'t delete it.'
     else
       @role.destroy
     end