Fixed a wrong error code in upload.php, also wrong version in dropload.php comments.

dropload.php

@@ -1,5 +1,5 @@
 <?php
-// Imeji Uploader Core Code -- Version 2.1 Revision 58 (Return Proper Error Codes Update)
+// Imeji Uploader Core Code -- Version 2.2 Revision 58 (Return Proper Error Codes Update)
 //
 // Core Variables. Don't change unless you know what you're doing.
 $imejicoreversion = "Imeji-Caddy_V2.2_Droploader_R58";

upload.php

@@ -117,8 +117,8 @@ if ($uploadOk == 0) {
     } else {
         // If anything wrong here, go to failure condition.
         //echo "Sorry, there was a problem uploading your file.";
-        // This part of code should never occur. But in case it does, redirect user to error page with code 500.
-        header('Location: ./failed.php?error=500');
+        // This part of code should never occur. But in case it does, redirect user to error page with code 422.
+        header('Location: ./failed.php?error=422');
     }
 }
 ?>