Migratecards

one-line fix for card migrations issue.  (wagn:migrate was failing on new cldstr sites.  not actually causing major issues, but not good).

I'm not wild about just sticking constants in random places, but this is a hard-to-test issue and I wanted to push it through pretty quickly.

figure it might also work to stick a require_dependency in the middle of the task?  That's a bit clearer but I wasn't sure...