Fix spec errors

spec/controllers/overhead_time_entry_activity_controller_spec.rb

@@ -12,7 +12,8 @@ describe OverheadTimeEntryActivityController, "#index as non-admin" do
                         :anonymous? => false,
                         :name => 'Test user',
                         :projects => Project,
-                        :allowed_to? => false
+                        :allowed_to? => false,
+                        :memberships => []
                         )
     end
   end

spec/lib/overhead_timesheet_hook_spec.rb

@@ -1,4 +1,8 @@
 require File.dirname(__FILE__) + '/../spec_helper'
+# For assert_select
+require 'action_controller'
+require 'action_controller/assertions/selector_assertions'
+include ActionController::Assertions::SelectorAssertions
 
 # Hack to make RSpec play nicely with call_hook's default contexts
 def stub_view_to_use_controller_instance