Fix product variants spec.
Merge branch 'master_on_bootstrap' of https://github.com/reinaris/spree into master_on_bootstrap
Fix properties specs, and a couple products.
Remove page! and fix a spec.
Fix promtions adjustment spec.
Remove defunkt spec.
Fix some order tab specs.
Some a few more order specs.
Show order summary on customer step.
Fix order adjustment specs.
Fix several payment specs.
Fix another payment spec.
Remove reference to deleted file.
Address a couple more specs.
Check should be on line item.
Remove leftover page
Fix remaining order listing specs.
Fix a product list spec.
Fix other product specs.
Default to use billing in backend.