Add 'maxNumberRetries'

[Masterdanielsan]

When a file fails to upload it has a backoff that occurs. I think that it might be a good idea to also limit the number of attempts that it does. In the case that the upload contains a great many files, if several of them fail to upload for some reason, it might be a good idea for them to stop attempting to upload at some point. This would also log the failed uploads in a list and make them accessible so that the user/dev can be made aware of which ones are failing.

[shay8el]

hope that will help :)
#451 (comment)