SalutConnection: rename handle_repo to contact_repo where dealing purely with contact handles
SalutConnection: rename handle_repo to contact_repo where dealing purely with contact handles

freedesktop-unofficial-mirror/telepathy__telepathy-salut,freedesktop-unofficial-mirror/telepathy__telepathy-salut,freedesktop-unofficial-mirror/telepathy__telepathy-salut,freedesktop-unofficial-mirror/telepathy__telepathy-salut