Add LIMIT 1 to the get_random_token query.
Add LIMIT 1 to the get_random_token query.

This is a performance improvement. It speeds reply time, particularly
when babbling.

wodim/cobe-ng,LeMagnesium/cobe,meska/cobe,meska/cobe,DarkMio/cobe,pteichman/cobe,DarkMio/cobe,tiagochiavericosta/cobe,LeMagnesium/cobe,tiagochiavericosta/cobe,wodim/cobe-ng,pteichman/cobe