Move the old JS uploader backend libs out from the CoreLibs

They are not CoreLibs and so they moved one level up and were renamed
"FileUpload"

www/lib/FileUpload/Core/qqUploadedFileForm.inc

@@ -1,6 +1,6 @@
 <?php
 
-namespace CoreLibs\Upload\Core;
+namespace FileUpload\Core;
 
 /**
  * Handle file uploads via regular form post (uses the $_FILES array)

www/lib/FileUpload/Core/qqUploadedFileXhr.inc

@@ -1,6 +1,6 @@
 <?php
 
-namespace CoreLibs\Upload\Core;
+namespace FileUpload\Core;
 
 /**
  * Handle file uploads via XMLHttpRequest

www/lib/FileUpload/qqFileUploader.inc

@@ -1,9 +1,9 @@
 <?php
 
-namespace CoreLibs\Upload;
+namespace FileUpload;
 
-use \CoreLibs\Upload\Core\qqUploadedFileForm;
+use \FileUpload\Core\qqUploadedFileForm;
-use \CoreLibs\Upload\Core\qqUploadedFileXhr;
+use \FileUpload\Core\qqUploadedFileXhr;
 
 class qqFileUploader
 {