1.2.15 released
- cache DNS lookups for SOCKS5 proxy
- fix stalled pieces on disk-full errors
- fix build configuration issue on NetBSD, OpenBSD and DragonFly
- make UTF-8 sanitization a bit stricter. This will re-write invalid UTF-8
code points encoding surrogate pairs - fix restoring last_seen_complete from resume data
- fix issue on MacOS where the DHT was not restarted on a network-up notification
- make remove_torrent flags be treated as flags (instead of an enum)