[New] Callback affiliate's URL - affiliate can define callback url as 'affiliate tracking code', this will work also for pixel tracking
[Upgraded] Fixed cost - will be stored per commission group
[Upgraded] sales fraud protection - duplicate orderID will be available at campaign level
[Upgraded] Lifetime Commissions - campaign, banner and channel will be stored for lifetime commission
[Upgraded] settings for Payment request button - button will be visible only if affiliate reached the minimum payout balance limit, and there is a possibility to disable this button
[Fixed] affiliate tracking codes for split commissions
