Initial Commit for GH-916.
- register a pubsub error channel.
- register and subscribe a bridge handler to bridge it to the global error channel.
- pass the error channel to the implementation so it can wire it into the outbound endpoint.
- destroy the infrastructure when unbinding.
Javadoc Polishing
Add test case.
temp update to SI 4.3.12
GH-802 - Error Handling Documentation
Resolves#802
0eab8a5fa7