Presence issues on 0.85 sugar when server is running gadget instead of shared roster

[daveb]

Yesterdy, due to repeated performance issues with shared rosters when registered users numbered in the thousands, I turned off shared roster so we could test gadget on jabber.sugarlabs.org.

It was reported by a quidam and satellit in irc that the neighborhood display was incorrect. Specifically most of the icons had the same color as the user instead of their correct colors.

This appeared to happen only in sugar newer than 0.84. I tested in soas-strawberry and another 0.84 instance and could not reproduce.

Trisquel and soas03 exhibited the behavior accordind to the reports.