* Handle failed login attempts via Telnet
* New lockout features for >= N failed attempts
* New auto-unlock over email feature
* New auto-unlock after N minutes feature
* Code cleanup in users
* Add user_property.js - start using consts for user properties. Clean up over time.
* Update email docs
config/menu.hjson and config/prompt.hjson are now moved to misc/menu_template.in.hjson and config/prompt_template.in.hjson. These are now simply used as template files and copied to config/ with proper naming when issuing 'oputil.js config new'