Add Tasks (event queue) system.
README.md: link to new Raft web site.
Call schedule for startup initialization.
Local/HTTP: don't copy opts to allow live reconfig.
Add opts and put verbose output behind opts.verbose flag.

Also cleanup miscellaneous 'events' -> 'tasks' in comments.
Info/debug output cleanup. Add opts.log for override.
Tasks: callbacks for task events (schedule, finish, cancel, etc).