Revert non-managed recurring

Merge pull request #20 from xendit/revert-recurring

Revert "add credit card recurring in client & example"

Add virtual account options when creating callback virtual account

Merge pull request #19 from xendit/callback_virtual_account

add empty validation in creating callback virtual account

Add external id and idempotency key in refund API

Merge pull request #17 from xendit/cc-refunds

update refunds method client

Add disbursement options when creating disbursement

Merge pull request #16 from xendit/disbursement_idempotent

add idempotency key options in disbursement

Credit card recurring

Merge pull request #15 from xendit/0505gonzalez-patch-1

Update post_invoice_status_callback_server_example.php

Credit card payment capture

0.2.0

Credit card payment capture method