Resposive Filemanager v9.13.0

• 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
• added mime type .rar
• fixed folder permission to get config value
• fixed an error on folder renaming
• a lot of others bugs fixed