Deactivate "exitOnException" and call $ipnClass->main(); from inside a try catch to allow loops

Hi @mattwire, this is the 2nd part of what we discussed here. Let me know how it looks to you.

I haven't created a pull request for this yet because it depends on this other one, which implements the setExceptionMode method.

This change will make possible to call the Stripe.ipn API in a loop, catching the generated exceptions. There is an example implementation of what would be possible: here.

changed target branch from master to 6.4

Merged via 2be227c6 into 6.4

closed