WinSCP 4.2.9

* Never try to rename file to the very same name.
* Bug fix: Failure when executing custom command and not capturing its output.
* Bug fix: GSSAPI/Kerberos was not working.
* Bug fix: Local file timestamp was interpreted incorrectly for synchronization on Windows 7.
* Bug fix: Failure on close scripting command.
* Bug fix: Edited file was reloaded from active session, not from original session.
* Bug fix: Path history was mixed among sessions.
* Bug fix: Session closed after operation completes was automatically reconnected.
* Bug fix: Check for application updates was hanging.
* Bug fix: Missing content on OpenCandy screen.