Design of monitor/notifier messages

[favonia]

Not sure which format is the best...

Monitors

Failed to set: me.hello.org, you.hello.org, hi.hello.org, hey.hello.org

Set: me.hello.org, you.hello.org

Notifiers

Updated x.x.x.x and y.y.y.y for the detected IPv4 address 1.2.3.4.

Failed to detect the IPv4 address.

Possibly failed to update xxx.xx for the detected IPv4 address 1.2.3.4.

Possibly failed to update xxx.xx for the detected IPv4 address 1.2.3.4; IPv4 records of yyy.yyy and zzz.zzz were updated.