CC-3192: Problem with web uploads for Airtime 2.0.0 beta2

- The bug was introduced with CC-3086. When file is large enough so
the pluload use chucking, it would create different temp name for each
chuck.
- Fixed it by using unique_name feature on plupload

airtime_mvc/application/models/StoredFile.php

@@ -810,12 +810,9 @@ class Application_Model_StoredFile {
 			$contentType = $_SERVER["CONTENT_TYPE"];
 
         // create temp file name (CC-3086)
-        $command = "mktemp --tmpdir=".$p_targetDir;
-        $tempFilePath= exec($command);
-
-        if($tempFilePath == ""){
-            die('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Unable to create tmp file."}, "id" : "id"}');
-        }
+        // we are not using mktemp command anymore.
+        // plupload support unique_name feature.
+        $tempFilePath= $p_targetDir . DIRECTORY_SEPARATOR . $fileName;
 
 		if (strpos($contentType, "multipart") !== false) {
 			if (isset($_FILES['file']['tmp_name']) && is_uploaded_file($_FILES['file']['tmp_name'])) {

airtime_mvc/public/js/airtime/library/plupload.js

@@ -6,6 +6,7 @@ $(document).ready(function() {
 		runtimes : 'gears, html5, html4',
 		url : '/Plupload/upload/format/json',
 		chunk_size: '5mb',
+		unique_names: 'true',
 		multiple_queues : 'true',
 		filters : [
 			{title: "Audio Files", extensions: "ogg,mp3"}
@@ -52,7 +53,6 @@ $(document).ready(function() {
 		uploadProgress = false;
 	});
 	
-	
 	$(window).bind('beforeunload', function(){
 		if(uploadProgress){
 			if(!confirm("You are currently uploading files.\nGoing to another screen will cancel the upload process.\nAre you sure you want to cancel the upload process and go to the screen you clicked on?")){