Fixed a user browse ordering test that was not actually valid.

Authors are sorted by date, therefore we must craft the dates on the
authors. It worked before since the Users were being created in the
correct order, but I figure mine actually stresses the right thing.

test/acceptance/user_browse_test.rb

@@ -16,8 +16,11 @@
 
   describe "sorted by creation date (default)" do
     it "sorts by latest users by default" do
-      aardvark = Fabricate(:user, :username => "aardvark", :created_at => Date.new(2010, 10, 23))
-      zebra    = Fabricate(:user, :username => "zebra", :created_at => Date.new(2011, 10, 24))
+      zebra    = Fabricate(:user, :username => "zebra")
+      zebra.author.created_at = Date.new(2010, 10, 24)
+
+      aardvark = Fabricate(:user, :username => "aardvark")
+      aardvark.author.created_at = Date.new(2010, 10, 23)
 
       visit "/users"
       assert_match /zebra.*aardvark/m, page.body