* Temporary fix for MAJOR global temp cleanup bug: comment out node-temp .cleanup() methods

* Don't move temp uploads to area directory until user submit/completed
* New file util module

core/file_util.js

@@ -0,0 +1,62 @@
+/* jslint node: true */
+'use strict';
+
+//	ENiGMA½
+
+//	deps
+const fse		= require('fs-extra');
+const paths		= require('path');
+const async		= require('async');
+
+exports.moveFileWithCollisionHandling		= moveFileWithCollisionHandling;
+exports.pathWithTerminatingSeparator		= pathWithTerminatingSeparator;
+
+//
+//	Move |src| -> |dst| renaming to file(1).ext, file(2).ext, etc. 
+//	in the case of collisions.
+//
+function moveFileWithCollisionHandling(src, dst, cb) {	
+	const dstPath		= paths.dirname(dst);
+	const dstFileExt	= paths.extname(dst);
+	const dstFileSuffix	= paths.basename(dst, dstFileExt);
+
+	let renameIndex		= 0;
+	let movedOk			= false;
+	let tryDstPath;
+
+	async.until(
+		() => movedOk,	//	until moved OK
+		(cb) => {
+			if(0 === renameIndex) {
+				//	try originally supplied path first
+				tryDstPath = dst;
+			} else {
+				tryDstPath = paths.join(dstPath, `${dstFileSuffix}(${renameIndex})${dstFileExt}`);
+			}
+
+			fse.move(src, tryDstPath, err => {
+				if(err) {
+					if('EEXIST' === err.code) {
+						renameIndex += 1;
+						return cb(null);	//	keep trying
+					}
+
+					return cb(err);
+				}
+
+				movedOk = true;
+				return cb(null, tryDstPath);
+			});
+		},
+		(err, finalPath) => {
+			return cb(err, finalPath);
+		}
+	);	
+}
+
+function pathWithTerminatingSeparator(path) {
+	if(path && paths.sep !== path.charAt(path.length - 1)) {
+		path = path + paths.sep;
+	}
+	return path;
+}