Remove deface duplicate in gemspec.
Use rails 4 in readme installation instructions.
Fix deprecation warning.
Refactor spree_api:

* Use find_by() instead of dynamic find_by_something()
* Minor syntax cleanup
Refactor spree_core:

* Use Rails4 find_by()
Minor copyedits to README

Fixes #3551
Add missing span info tag around help text.

[Closes #3546]
Style fix for guest checkout label and radio options.

- page: admin/orders/{order.number}/customer
- issue: colon was left out of styling and 'Yes' and 'No' had no
styling nor label.

[Closes #3545]
Bumped CSS Browser Selector to 0.6.2

Also js linted.

[Closes #3543]
expand order number field size to 32
Use delete_all to destroy all related product properties when deleting a property

Fixes #3610