Log when the backlog for a particular endpoint has cleared
Log when messages are send to vertx event-bus on success and failure
Add comments and add context to exception message
Make concurrent thread count and event-bus send timeout configurable
Use the configured event-bus send timeout rather than a hard-coded value
Add log message explaining how the flows are constructed
Merge pull request #2 from WFMP/feature/make-thread-count-and-send-timeout-configparams

make thread count and send timeout configparams