Fix typo in readme
Merge branch 'iconara-fix_readme_typo'
Make it possible to list all topics with Consumer#metadata
Refactor the Consumer#metadata specs to use expect/have_received

Instead of expect/to/receive.

Using have_received means that the assertions are at the end of the test instead of in the test setup.
Add a test for the request type sent by Consumer#metadata

Since it’s important that the Scala code gets the right type.
Alias Consumer#metadata as #topic_metadata

This fixes #2
Merge branch 'iconara-consumer_metadata_improvements'
Create a new FetchRequestBuilder for each fetch

This avoids a lock with the tradeoff that more objects are created.
Merge branch 'iconara-no_fetch_request_builder_reuse'
Remove unused (internal) Concurrency module

Whoops, probably should’ve done this in the previous PR that was merged.
Depend on a release of kafka-jars

And add the dependency to the .gemspec so it becomes transitive.