Log Message:
Update to almost newest patchlevel.

 31440  7.3.639  it's not easy to build Vim on Windows with XPM support
  2219  7.3.641  ":mkview" uses ":normal" instead of \ 
":normal!" for folds
  1810  7.3.642  segfault with specific autocommands
  2060  7.3.643  MS-Windows: 'lines' is wrong when starting up maximized
  1925  7.3.644  dead code for BeOS GUI
  2910  7.3.645  no tests for patch 7.3.625 and 7.3.637
  2353  7.3.646  undo file unusable after reloading a buffer
  5213  7.3.647  "gnd" doesn't work correctly in Visual mode
  3831  7.3.648  crash when using a very long file name
  2256  7.3.649  with 'clipboard' set to "unnamed" small deletes go to \ 
"1
  3120  7.3.651  Completing ":help \{-" gives error message
  2304  7.3.652  workaround for Python crash isn't perfect
  7986  7.3.653  lacking XPM support for MingW, 32 and 64 objects mixed up

XXX
There are newer patches, but they won't apply cleanly. I'll investigate it later.