Add usage/validation for bin
Further improvement to CLI help messages and validation.
Cleanup, make cli parsing more DRY.
Simplifies loading of util.
Moved lib/util to top level.
Pubsub todo, removed unused stuff in util.
Deprecated 'obituary()' in favor of the more gentle-natured 'retire()' in pubsub hook
Pubsub todo update
Completes cleanup of lib/util
Removed unused config, moved CLI-related config to util/cli