eliminate rare chance of race condition

One could loose the response of the spawned process due to too quick
response message. So add lintener first, then call parallel process.

Author: Jan Kurella

lib/thread.js

@@ -95,12 +95,12 @@
 		this.operation.then(function () {
 			var wrk = new Worker(that.options.path);
 			wrk.postMessage(Thread.getWorkerSource(cb));
-			wrk.postMessage(that.data);
 			wrk.onmessage = function (msg) {
 				wrk.terminate();
 				that.data = msg.data;
 				newOp.resolve(null, that.data);
 			};
+			wrk.postMessage(that.data);
 		});
 		this.operation = newOp;
 		return this;
@@ -110,12 +110,12 @@
 		var that = this;
 		var wrk = new Worker(that.options.path);
 		wrk.postMessage(Thread.getWorkerSource(cb));
-		wrk.postMessage(that.data[i]);
 		wrk.onmessage = function (msg) {
 			wrk.terminate();
 			that.data[i] = msg.data;
 			done();
 		};
+		wrk.postMessage(that.data[i]);
 	};
 
 	Thread.prototype.map = function (cb) {
@@ -148,12 +148,12 @@
 		var that = this;
 		var wrk = new Worker(that.options.path);
 		wrk.postMessage(Thread.getWorkerSource(cb));
-		wrk.postMessage(data);
 		wrk.onmessage = function (msg) {
 			wrk.terminate();
 			that.data[that.data.length] = msg.data;
 			done();
 		};
+		wrk.postMessage(data);
 	};
 
 	Thread.prototype.reduce = function (cb) {