* FTN BSO module: Export to <domain>.<zone> dirs where appropriate

* Code cleanup
* Fix FTN packet header writing
* Add CHRS support to FTN packet I/O
* Change to FNV-1a hash of ms since 2016-1-1 ("enigma epoc") + message ID for MSGID serial number and <packet>.pkt BSO export
* Only write some FTN kludges for EchoMail (vs NetMail)
* If config specifies, call message network modoule(s) .record() method @ persist (WIP)

core/fnv1a.js

@@ -0,0 +1,50 @@
+/* jslint node: true */
+'use strict';
+
+let _		= require('lodash');
+
+//	FNV-1a based on work here: https://github.com/wiedi/node-fnv
+module.exports = class FNV1a {
+	constructor(data) {
+		this.hash = 0x811c9dc5;
+		
+		if(!_.isUndefined(data)) {
+			this.update(data);
+		}
+	}
+
+	update(data) {
+		if(_.isNumber(data)) {
+			data = data.toString();
+		}
+		
+		if(_.isString(data)) {
+			data = new Buffer(data);
+		}
+
+		if(!Buffer.isBuffer(data)) {
+			throw new Error('data must be String or Buffer!');
+		}
+
+		for(let b of data) {
+			this.hash = this.hash ^ b;
+			this.hash += 
+				(this.hash << 24) + (this.hash << 8) + (this.hash << 7) + 
+				(this.hash << 4) + (this.hash << 1);
+		}
+
+		return this;
+	}
+
+	digest(encoding) {
+		encoding = encoding || 'binary';
+		let buf = new Buffer(4);
+		buf.writeInt32BE(this.hash & 0xffffffff, 0);
+		return buf.toString(encoding);
+	}
+
+	get value() {
+		return this.hash & 0xffffffff;
+	}
+}
+