fix for checkout button being disabled when checkout fails
Merge branch 'refs/heads/kohana_v3.3/fix/checkout_fail_disabled_button' into kohana_v3.3/master
adding support for the new card testing select
Merge branch 'refs/heads/kohana_v3.3/feature/card_testing_select' into kohana_v3.3/master
adding continue shopping in summary details

just closes the summary
Merge branch 'refs/heads/kohana_v3.3/feature/summary_continue_shopping' into kohana_v3.3/master