EmpathyEventManager: Do not miss contact signon even for new contacts
EmpathyEventManager: Do not miss contact signon even for new contacts

When a new contact is added, it could already be online,
especially with Salut.

https://bugzilla.gnome.org/show_bug.cgi?id=704452

GNOME/telepathy-account-widgets,Distrotech/telepathy-account-widgets,Distrotech/telepathy-account-widgets,GNOME/telepathy-account-widgets,GNOME/telepathy-account-widgets