hooks callback halting

hooks_test.rb

      should 'does not halt callbacks when a non-true result is encountered' do
        @mum.class.after_eight { :before_failure }
        @mum.class.after_eight { false }
        @mum.class.after_eight { :after_failure }
        results = @mum.run_hook(:after_eight)
        assert_equal [:before_failure, false, :after_failure], results
      end

This passes in hooks 0.2.2