fixed bug: the default_query tried to set the old tweek group_by instead the new one

git-svn-id: https://dev.finn.de/svn/cockpit/branches/reporting_merge@1463 7926756e-e54e-46e6-9721-ed318f58905e

app/controllers/cost_reports_controller.rb

@@ -65,7 +65,7 @@ class CostReportsController < ApplicationController
   ##
   # Set a default query to cut down initial load time
   def default_group_parameters
-    {:columns => [:tweek], :rows => []}.tap do |h|
+    {:columns => [:week], :rows => []}.tap do |h|
       h[:rows] << :project_id unless @project
     end
   end