Add user ID to shipping packages
removed all the_content filter in favor to wpautop() and do_shortcode() functions
added method to create users with the api
Added the WC_API_Server::urldecode_deep() method

To make it possible to get a more complex data structure.
Example:

array( 'data' => array( 'key' => 'value' ), 'data2' => array( 'key' => 'value' ) )
added route to create customers via api
fixed the customer creation via api
added method to edit customer via api
added the woocommerce_api_create_customer action in WC_API_Customers::create_customer()
added the woocommerce_api_edit_customer action in WC_API_Customers::edit_customer()
added method do delete customers via api
improved the customer api creation/edition
removed sanitize_text_field() function in favor to wc_clean() function in customers api
Create coupons via API
Better coupon create error messages
Fix create coupon api method
improved the WP_Error's ids in customers api
added missing textdomain
fixed coding standards in includes/api/class-wc-api-customers.php
improved the validation for WC_API_Customers::edit_customer() and WC_API_Customers::delete_customer()
REST API create_coupons function