Add not now and closed as status filters

https://fizzy.37signals.com/5986089/cards/2342

test/models/filter_test.rb

@@ -1,6 +1,10 @@
 require "test_helper"
 
 class FilterTest < ActiveSupport::TestCase
+  setup do
+    Current.session = sessions(:david)
+  end
+
   test "cards" do
     Current.set session: sessions(:david) do
       @new_collection = Collection.create! name: "Inaccessible Collection"
@@ -21,6 +25,10 @@ class FilterTest < ActiveSupport::TestCase
     filter = users(:david).filters.new indexed_by: "closed"
     assert_equal [ cards(:shipping) ], filter.cards
 
+    cards(:shipping).postpone
+    filter = users(:david).filters.new indexed_by: "now_now"
+    assert_includes filter.cards, cards(:shipping)
+
     filter = users(:david).filters.new card_ids: [ cards(:logo, :layout).collect(&:id) ]
     assert_equal [ cards(:logo), cards(:layout) ], filter.cards