XF Premium [XFA] RM Marketplace/Shop 5.8.5

Corrected bugs

• Stripe Payment Error – 'transaction_id' Null on Purchase Attempt
• Stripe Callback Error – Attempt to Read "status" on Null

• Still impossible to update add-on when running XF2.2
• Post upgrade job error from 5.8.0 when transaction is missing

Impossible to update add-on when running XF2.2

• Error on resources links in purchase complete alert
• Impossible to delete order custom fields