fix: replace process.nextTick with setImmediate (fixes #22)

Author: gajus

lib/MemoryFileSystem.js

@@ -278,13 +278,13 @@ MemoryFileSystem.prototype.createWriteStream = function(path, options) {
 		try {
 			var result = this[fn + "Sync"](path);
 		} catch(e) {
-			process.nextTick(function() {
+			setImmediate(function() {
 				callback(e);
 			});
 
 			return;
 		}
-		process.nextTick(function() {
+		setImmediate(function() {
 			callback(null, result);
 		});
 	};
@@ -299,13 +299,13 @@ MemoryFileSystem.prototype.createWriteStream = function(path, options) {
 		try {
 			var result = this[fn + "Sync"](path, optArg);
 		} catch(e) {
-			process.nextTick(function() {
+			setImmediate(function() {
 				callback(e);
 			});
 
 			return;
 		}
-		process.nextTick(function() {
+		setImmediate(function() {
 			callback(null, result);
 		});
 	};