Blocked revisions 74134,74147 via svnmerge

........
  r74134 | thomas.heller | 2009-07-21 02:27:14 -0400 (Tue, 21 Jul 2009) | 3 lines

  Issue #6493: Fix a ctypes problem setting bitfields more than 31 bits
  wide.
........
  r74147 | thomas.heller | 2009-07-21 15:04:02 -0400 (Tue, 21 Jul 2009) | 1 line

  Revert rev 74134, as it does not completely fixx issue #6493.
........