Changeset [8819fd5fd71f6c2a510557ec0ccda22f19db9c4c] by Alexander Ljungberg

Improve nib2cib support for NSMatrix based radio groups.

Without this fix, a matrix with a target-action pair would crash when the cib was loaded due to the matrix having been replaced with a CPView (which cannot take a target-action pair).

Now if the matrix is for radio buttons, the action connection for the matrix is made to the CPRadioGroup instead and works as expected when radio selections are made.
https://github.com/cappuccino/cappuccino/commit/8819fd5fd71f6c2a510...