Added support for snappy stream decoding
Allow to decode snappy streams
Allow Gzip bulk consumption
Added Gzip test. Simplified a little.
Rename mockbroker.go to mockbroker_test.go
Revert "Rename mockbroker.go to mockbroker_test.go"

This reverts commit 849ea1ab8e6e29f7c948850e276e482bd52f9849.
Mockbroker should not import testing - https://github.com/Shopify/sarama/issues/66
Merge pull request #64 from dim/master

Consumption of bulk-encoded messages fails