KFileWizard: fix that dirView is not scrolled to a current index

on connecting to a remote server
FtpFileEngine: fix removed files still remain after refreshing
SFtpFileEngine: fix removed files still remain after refreshing
SFtpFileEngine: fix crash in debugger

When debugging by debugger, exceptions such as SIGSEGV occur.

    Use QString::toLocal8Bit() instead of QString::toLatin1.
    Use "" instead of QString().
fileoperation: rename() and remove() does not require open()
Support file operations from FTP/SFTP between separate processes
Version up to v1.1.0
Update Korean translation
Update README