changes:
alect@cnBeta
- *nix and OS X: Avoid SIGPIPE if socket gets closed during uploads
- Fix SFTP speed limits
- Avoid reduntant refreshes of local file lists on some drag&drop operations
- Send user agent with requests if using HTTP proxy
- MSW: Add checkbox to start FileZilla to finish page of intaller
- Reselect previously set default file exists action if reopening dialog on a queue item
- OS X: Do not check /net whether it has subdirectories, it is extremely slow
- Upon reconnecting, fall back to list current directory if last used directory is no longer accessible
alect@cnBeta