Seek to absolute offset

[andras-sereny]

Looks like a versatile way to consume from Kafka, I really like it!

In SimpleConsumer.seek, there are several ways the provided offset could be interpreted in a relative way. However, as far as I see there is no option to provide an absolute offset to seek to -- would it be possible to add this functionality?

[wizzat]

There is some discussion in PR #162 about how to handle exactly this. There's also some discussion about how to handle absolute offsets in multipartition consumers both there and in a linked issue. Feel free to jump in the conversation! :)