o All 'from Globals import...' lines now removed in favor of imports
  from the original location.

o All valid 'import Globals' now bear comments documenting their purpose
  (to read or set shared data).

o All unit tests are passing.  Some functional tests now fail (in addition
  to those failing on the trunk), due to dependencies on import-time
  side effects, now cleared up.  These need to be visited, of course.