use card id as the linking field for all extensions+discussion

This is where the current version of this is Most recent commit.

Test status is:

Unit:110 tests, 1222 assertions, 7 failures, 17 errors

Functional:16 tests, 18 assertions, 5 failures, 8 errors

Integration:19 tests, 49 assertions, 6 failures, 0 errors

Spec:484 examples, 50 failures, 4 pending

Cucumber: 45 scenarios (29 failed, 1 skipped, 15 passed)

I changed this to a Ticket (it was created as a Support Ticket), and gave it a couple of likely-seeming tags.

  --John Abbe.....Wed Dec 29 15:18:03 -0800 2010

Is this part of what's being done in Wagn 1.05+2? (if so, please tag it).

  --John Abbe.....Sat Jan 22 15:04:24 -0800 2011

no. coding is underway, but it won't be in 1.5.2

  --Ethan McCutchen.....Sat Jan 22 15:25:00 -0800 2011

I don't think we're going this route any more. We're basically obviating the extensions one by one.

  --Ethan McCutchen.....Thu Dec 01 13:56:01 -0800 2011