* Mark manual payout active
* Run payout logics
* Reset manual payout
This ensures only one manual transaction can be run at a time.
If any users starts a manual payout others have to wait until the site
completed loading and finished the transaction process.
As long as we don't have too many users doing a manual payout at the
same time this should not be an issue. Best for users is using auto
payouts anyway.
This addresses #149
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