MountainRoseHerbs/spree — pull request #6 by mbj (2014-09-24 21:42:28+00:00)
Title: Kill exception shadowing

* The code used to rescue any exception. Even exceptions operators /
developers want to stop the world.
* When we want to allow a certain set of exceptions to be shadowed we
should use shipment rate calculation specific exception lists that still
allow shipment-unrelated exceptions to stop the world.
* When the downstream libraries do not provide matchable exceptions
these should be fixed instead of adding a debugging burden to everyone
having to work with shipment rate calculation.