Load thumbnails Fixes #3581

As committed on master branch:
- https://github.com/woothemes/woocommerce/commit/03e3e6e9cae5f16258cf2a6a43cb0ea09411298a
Correctly format product names in paypal. Fixes #3308.

@coenjacobs for .14 please
Fix bulk edit status Fixes #3614

As committed on master branch:
- https://github.com/woothemes/woocommerce/commit/f2586d8d765df16b1a9f20c327acf97a05cf6c2c
Fix encoding in layered nav. Fixes #3600

@coenjacobs for .14