This commit introduces major changes in 256 colors support:
- extended colors can be used without being added with command "/color add"
- background color is now allowed for nick colors (using slash separator)
This commit provides:
- new IRC command /notify
- new options: irc.look.notify_tags_ison, irc.look.notify_tags_whois,
irc.network.notify_check_ison, irc.network.notify_check_whois
- new option "notify" in servers (but should not be changed, only /notify
command should be used)
- infolist "irc_notify" to get notify list (by server or for all servers).
