Update .travis-old.yml
Update install-wp-tests.sh
Update admin-footer.php
Update CONTRIBUTING.md
Update contextual-help.php
Update sample-products-import.xml
Fixes #2646
#2500 - Verify updating a payment was successful before editing post_meta
Merge pull request #2649 from cklosowski/issue/2500

Verify updating a payment was successful before editing payment_meta
Move edd_update_edited_purchase and wp_update_post higher up so that it runs before any ther payment data is changed. If we can't update the main payment record, nothing else should change. #2500
Merge pull request #2647 from sumobi/issue/2646

Fixes #2646
Merge pull request #2645 from chriscct7/master

Change all WP.org references to use SSL
Escape all form inputs
Merge pull request #2653 from elliott-stocks/patch-11

Escape all form inputs
Fix invalid CSS

props @jjj
Remove commented out style in edd-admin.css

Causing issues with minification.
Remove stray comma

Causing styling rule not to be applied.
Merge pull request #2655 from johnjamesjacoby/master

Remove commented out style in edd-admin.css
Identify the payment related to the cart details passed in the edd_payment_meta_cart_details filter

Fix #2660
Merge pull request #2661 from naomicbush/issue/2660

Identify the payment related to the cart details passed in the edd_payme...