Group picture is the picture of the first contact
Created by: ghost
[enhancement] In the conversation list, group's pictures are just the picture of the first contact in the group. This is a problem because is harder to differentiate between groups or even between the group and the single contact.
Scenarios: Group1: Mary, Joseph, Mark Group2: Mary, Peter, Tim
Both group 1 and 2 will have Mary's picture as the group's picture.