filecast: äldre versioner att ladda ner

What's Changed
- Harden ANNOUNCE delivery: repeat the announcement beyond the initial burst by @gistrec in #43
Full Changelog: v1.0.1...v1.1.0

What's Changed
- Use the lowercase gistrec/filecast repo name in links and install.sh by @gistrec in #21
- Document the Homebrew tap and link the encryption issue by @gistrec in #23
- Enforce no-clobber atomically and give main() sole ownership of the socket by @gistrec in #24
- Reject control/NUL bytes in sanitizeName by @gistrec in #26
- Use disk-backed transfer storage by @gistrec in #25
- Add disk-full E2E test for the write-failure cleanup branch by @gistrec in #27
- Don't delete cwd .part files when receive times out before ANNOUNCE by @gistrec in #28
- Bound part-metadata memory with a bitmap and a lazy sender map by @gistrec in #29
- Propagate durable flush/close errors from closePartFile by @gistrec in #30
- [Security review][M1] Reject same-session ANNOUNCE that would reset or hijack a transfer by @gistrec in #31
- [Security review][L4] Undeliverable datagrams silently strand transfers at large --mtu by @gistrec in #33
- [Security review][L7] Reject reserved device names with trailing spaces/dots by @gistrec in #35
- [Security review][L3] Reject pre-planted hardlinks when opening .part files by @gistrec in #32
- [Security review][L5] Exit non-zero when the sender can't reach the kernel by @gistrec in #36
- [Security review][L1] Bound the receive wait and resend phase on a wall-clock deadline by @gistrec in #37
- [Security review][L6] Use steady_clock for RESEND rate-limiting by @gistrec in #34
- Reject symlinks and hardlinks on Windows when opening .part files by @gistrec in #39
- Harden pre-latch ANNOUNCE handling and bound resend/ttl edge cases by @gistrec in #40
- Pre-release hardening, doc-sync, and repo hygiene by @gistrec in #41
Full Changelog: v1.0.0...v1.0.1