Allow uploading pictures during the course of a competition.

[jflamy]

This means we have to store pictures in the database, for each athlete. With respect to flags, probably need a separate TEAMS table, something that was not done before - referential integrity issues, creating teams before athletes, etc. Could be done without any integrity constraint though, or with a weak key -- pick among defined teams, not enforced.

[jflamy]

And there needs to be some form of bulk load - take the picture and store it in the matching athlete. And vice-versa - export all the pictures ?