Remove esc_url_raw to allow for using of amazon s3 and other shortcodes in file url
API: Add customer count to each period for sales report

Part of #4055
Merge pull request #4540 from maxrice/rest-api-sales-report-tweak

API: Add customer count to each period for sales report
wc_clean on download url instead of esc_url to support shortcodes
Get exception message in cart Closes #4543
Merge pull request #4539 from kloon/master

Remove esc_url_raw to allow for using of amazon s3 and other shortcodes
Include admin functions for less complier on install. Closes #4527
Trigger change for country fields Closes #4546