multiple file selection: you can delete multiple files, you can select multiple file (n.b. if you select multiple files on stand alone mode it return a json list of urls, if you use editor with normal mode return only the first and if you use tinymce with responsivefilemanager plugin return all files on editor)
you can disable mime type renaming on config
blacklist extensions available on config
fixed precompiled test on duplication
rfm remember the last folder when return to filemanager