* Some code cleanup: spaces -> indents
* Resolve TODO removing Message.MetaCategories: Just use string names
* Misc ES5 -> ES6
* Fix bug in module loader when require() fails
* Some DRY in new_scan.js
* Use moment.js for Message modTimestamp
* Remove user_message_status stuff
* Add REPLY kludge support @ export
* Use TID vs PID kludge @ export (spec)
* Start work on @immediate - nearly complete
* createMessageUuidAlternate(): Mmethod for FTN message v5 UUID generation when no MSGID to work with
* parseAbbreviatedNetNodeList() now works properly
* Add core/uuid_util.js for various UUID utilities such as v5 named UUID generation
* Fix message meta load/retrieval
* Add lookup for REPLY kludge -> MSGID -> local reply IDs
* Fix SEEN-BY additions @ export
* Don't override MSGIDs if they already exist
* Store MSGID @ export so it can be inspected later
* Add import functionality (working, but WIP!)
* Clean up bundles and packets after import
* Fix some typos
* Fix message getQuoteLines()
* Quote builder fully functional
* MLTEV emits more information in position events
* Action keys can how handle plain characters that don't have full key object, e.g. "?"
* Hot keys for a lot of stuff
* WIP work on focus issue in VC.