adding listdir feature with filteriterator
recursive listDir feature with filter for FTP
Bug fix: SplFileInfo::getExtension() not available for php < 5.3.6
optimize ftp file extension and basename recognition
clean-up FTP FS
add unified listDir result for dropbox
DropBopx: add node type in listDir result
Bug fix: empty search pattern
clean up
add mode argument for createDir
rename filter var
add listDir to interface
add regex filter var to listDir()
clean-up
update docs
adding listDir() filesystem features