Improve `recover` operation
Add `completeAfter` operation
Cosmetic fix
Improve no-publishing configuration
Rename `OperationApi::~>` to `OperationApi::append`
Move `AbstractProducer` into `waves.impl` package
Remove dependency on akka-actor, bump version number to 0.2-SNAPSHOT
Improve SimpleActor implementation
Switch back from`FanOutBox` and `FanInBox` impls to dedicated "hardcoded" fan-out/fan-in impls
Add `unzip` operation
Refactor OperationImpl and substream handling infrastructure
Implement `Zip`
Implement `Merge`
Implement `MergeToEither`
Clean up operations API, fix smaller bugs, other refactorings