Delete contacts and contacts_groups records properly when a contact is removed from the user's roster.
Delete contacts and contacts_groups records properly when a contact is removed from the user's roster.

Zauberstuhl/diaspora-vines,Zauberstuhl/diaspora-vines,artofhuman/vines,diaspora/vines,Zauberstuhl/vines,AliEn707/vines,Zauberstuhl/vines,negativecode/vines,artofhuman/vines,artofhuman/vines,AliEn707/vines,negativecode/vines,diaspora/vines,AliEn707/vines