contactmodel: make refreshFilter and emit contactRemoved general
contactmodel: make refreshFilter and emit contactRemoved general

Change-Id: I9679df3bda97d4401ea137088d006820154d141b

savoirfairelinux/ring-lrc,savoirfairelinux/ring-lrc,savoirfairelinux/ring-lrc,savoirfairelinux/ring-lrc,savoirfairelinux/ring-lrc