Make membership appears on person pages
A little box which list memberships on all person pages. The box should appears below the person menu (on the right) and show something like :
belongings :
- <group name> as <role>
with <person a>, <person b>, and 3 others
- <group name 2> as <role>
with <person d>, <person q> and 1 other
Technically, this is linked with Chill-Main#12 (closed)