Changes found by deploy of HRD version to app-engine.  Currently partially
working...more changes to come.
More changes from the migration.  Finally dawns on me that I changed the
underlying data for Contest and Prediction, so I would have to do
something to keep the old data.  I'm not motivated enought to do that at
this time.  Things seem to be working well enough now.
Found a bug with google stock price > 1000 having a comma.  Fixed.