Support for reading from S3

[akshaydixi]

Currently, archived files(.[w]arc[.gz]) can be read from local disk, a http path or a hdfs path. Is it possible to add functionality to support reading files from S3 buckets too?

[kris-sigur]

I'm sure it's possible but it isn't currently on any roadmap. This is because none of the institutions currently engaged in OpenWayback development use S3. For this to be implemented in the near term it would probably have to come as a pull request from someone outside the core group.

[akshaydixi]

Ok. Will send a PR hopefully soon. Seems like a trivial change similar to f06e2d0 if I'm not mistaken