Dont bother with session cookies for tracking last_seen
Dont bother with session cookies for tracking last_seen

Fixes logic for tracking last seen time. Closes #204

genome/civic-server,genome/civic-server,genome/civic-server,genome/civic-server,ahwagner/civic-server,ahwagner/civic-server,ahwagner/civic-server,genome/civic-server,ahwagner/civic-server