Remove BasicWorker replaced by single simple Worker interface.
Add operation interface.
Rename ComponentBase to BaseComponent.
Add Java functions for operations.
Add filter interface and implementation.
Refactor Networks API to add type-specific components (feeder, executor, worker, etc).
Add splitter interface and implementation.
Rename 'default' component implementations to 'basic'.
Refactor feeders into a single interface and implementation.
Refactor executor interface and implementations into a single basic implementation.
Add helper methods to contexts for determining the component group.
Add Java worker verticle implementation.
Ensure Java verticle implementations do not prevent the network from starting due to Vert.x's internal determinations of whether a verticle is started.
Add aggregator interface and implementation.
Update the Networks API to support new component types.
Add splitter Java verticle implementation.
Add splitter Java verticle implementation.
Remove tags from outputs and messages.
Refactor and simplify Java verticle implementations.
Add Java filter verticle.