- Update to version 1.0.0
* irssiproxy can now forward all tags through a single port.
* The kill buffer now remembers consecutive kills. New bindings
were added: yank_next_cutbuffer and append_next_kill.
* autolog_ignore_targets and activity_hide_targets learn a new
syntax tag/* and * to ignore whole networks or everything.
* hilight got a -matchcase flag to hilight case sensitively.
* Display TLS connection information upon connect. You can disable
this by setting tls_verbose_connect to FALSE
* Certificate pinning for TLS certificates
* /names and $[…] now uses utf8 string operations.
* New setting completion_nicks_match_case
* /channel /server /network now support modify subcommand.
* New option sasl_disconnect_on_failure to disconnect when SASL
log-in failed.
- Drop not applied irssi-0.8.15_ssl_proxy.patch
- Run through spec-cleaner, remove support for old openSUSE/SUSE
releases.

- irssi 0.8.21 fixes four vulnerabilities that could result in
denial of service (remote crash) when connecting to malicious
servers or receiving specially crafted data [boo#1018357]:
* CVE-2017-5193: NULL pointer dereference in the nickcmp function
* CVE-2017-5194: out of bounds read in certain incomplete control codes
* CVE-2017-5195: out of bounds read in certain incomplete character sequences
* CVE-2017-5196: Correct an error when receiving invalid nick message
- drop irssi-0.8.20-buf.pl.patch, upstream