Update main.php

improvement: jquery file upload, chunked file uploads enabled about 5mb

web/templates/file_manager/main.php

@@ -147,6 +147,7 @@
                 var url = '/upload/';
                 $('#file_upload_' + letter).fileupload({
                     singleFileUploads: false,
+		    maxChunkSize: 5000000, // ~5 MB
                     add: function (e, data) {
                         FM.setTabActive(FM['TAB_'+letter]);