KWSys 2013-05-31 (dccf7725)

Extract upstream KWSys using the following shell commands.

$ git archive --prefix=upstream-kwsys/ dccf7725 | tar x
$ git shortlog --no-merges --abbrev=8 --format='%h %s' 725e541e..dccf7725
Brad King (2):
      e3370418 SystemTools: Use COMPILE_DEFINITIONS to pass platform tests
      dccf7725 SystemTools: Touch with better than 1s resolution if possible

Change-Id: Icdbcdf405e27b2d5dd30857c7c8679ed5096f252