wocky-roster-test: add test_roster_add_contact
wocky-roster-test: add test_roster_add_contact

freedesktop-unofficial-mirror/wocky,noonien-d/wocky,freedesktop-unofficial-mirror/wocky,freedesktop-unofficial-mirror/wocky,noonien-d/wocky,noonien-d/wocky