• fix paypal payment method
• fix guest checkout

fix guest checkout bug

fix order update event

Fixing order create event

Bump PHP version to support 7.2-7.4

• Add required org name setting
• Adjusts base url (api.kustomerapp.com) to use subdomain (org-name.api.kustomerapp.com) to support new Kustomer regions

Adds support for guest checkout.

Sends the order's increment id to the kustomer magento-api.

• Remove use of \Magento\Framework\HTTP\Client\Curl

Small fixes that should not affect functionality intended to pass Magento Marketplace review.