EOT Time Wrong In a Specific Scenario

[jaswrks]

There are cases when a subscr_eot event sent through a PayPal IPN which comes before the subscr_payment event causes a problem. s2Member sleeps for up to 5 seconds awaiting the payment notification, but this is sometimes not enough time.

This particular chain of events has the potential to cause an incorrect EOT Time under a scenario where the subscr_eot event occurs immediately upon signup; e.g. the subscription is for one payment only (not recurring); and PayPal is slow to send the subscr_payment event.

Reported by customer via ZenDesk ticket: 1001

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NOTE: there are actually two sleep() calls that need to be adjusted. One on the subscr_eot event and another on the subscr_payment event.