fix failing tests

features/calendar.feature

@@ -41,7 +41,7 @@ Feature: Show all due actions in a calendar view
     Then I should not see "a new next action"
 
   @selenium
-  Scenario: Deleting a todo complete will remove it from the calendar
+  Scenario: Deleting a todo will remove it from the calendar
     Given I have a todo "a new next action" in the context "@calendar" which is due tomorrow
     When I go to the calendar page
     Then I should see "a new next action"

features/show_statistics.feature

@@ -70,7 +70,7 @@ Feature: Show statistics
     Then I should not see the todo "todo 1"
     And I should see the todo "foo bar"
 
-  @selenium @wip
+  @selenium
   Scenario: Marking a todo selected from a chart as complete will remove it from the page
     Given I have 5 todos
     When I go to the statistics page

features/step_definitions/todo_edit_steps.rb

@@ -119,18 +119,19 @@ end
 When /^I edit the due date of "([^"]*)" to "([^"]*)"$/ do |action_description, date|
   todo = @current_user.todos.find_by_description(action_description)
   todo.should_not be_nil
+
   open_edit_form_for(todo)
   fill_in "due_todo_#{todo.id}", :with => date
   submit_edit_todo_form(todo)
 end
 
 When /^I edit the due date of "([^"]*)" to tomorrow$/ do |action_description|
-  date = format_date(todo.created_at + 1.day)
+  date = format_date(Time.zone.now + 1.day)
   When "I edit the due date of \"#{action_description}\" to \"#{date}\""
 end
 
 When /^I edit the due date of "([^"]*)" to next month$/ do  |action_description|
-  date = format_date(todo.created_at + 1.month)
+  date = format_date(Time.zone.now + 1.month)
   When "I edit the due date of \"#{action_description}\" to \"#{date}\""
 end