rebuilding eventteams from team pages also removes bad eventteams
remove extra var
only delete eventteams if event is over
Merge branch 'master' into eventteams-rebuild
Merge branch 'master' into eventteams-rebuild
put event team updater in helper
tests for event team updater
merging
fix eventteam updater test
Merge pull request #675 from fangeugene/eventteams-rebuild

Updating EventTeams for an event also deletes bad EventTeams