FileZilla 3 RC3

Fixed vulnerabilities:
- Fix buffer overflow if directory listing filters were enabled, causing FileZilla to crash.

New features:
- Backspace key can be used to goes to parent directory in file lists

Fixed bugs:
- Fix file selection by entering filename prefix
- Restore correct window size if FileZilla gets closed while minimized
- Disable "Create directory" entry in remote filelist context menu while disconnected
- Improve compatibility with SFTP servers using exotic listing formats
- MSW: Fix locales not working
- *nix: Fix queue scrolling