KWSys 2015-06-15 (d217407c)

Extract upstream KWSys using the following shell commands.

$ git archive --prefix=upstream-kwsys/ d217407c | tar x
$ git shortlog --no-merges --abbrev=8 --format='%h %s' 8533a79b..d217407c
Brad King (1):
      d217407c SystemTools: Fix preprocessor check WIN32 => _WIN32