[Reacts to the return of contacts, or to the extended absence of contacts, with notifications and other actions.]
[Enable "Miss you" feature]
[Last input message:]
[Custom absence period:]
[Enable Miss You]
[Tray/popup icon]
[Disable Miss You]
[has not returned after a long absence.]
[has not returned after being absent since %#x]
[BuddyExpectator]
[Contact returned]
[Contact still absent]
[Miss you event]
[Hide contact event]
[has returned after being absent since %d days]
[This contact has been absent for an extended period of time.]