alertmanager-irc-relay: bump pkgrel

alertmanager-irc-relay: add default_prepare

We were not applying the patches without this.

alertmanager-irc-relay: add PRIVMSG patch

alertmanager-irc-relay: bump pkgrel & fix confd

alertmanager: normalize initd/confd

alertmanager-irc-relay: fix up initd/confd

alertmanager-irc-relay: new aport