Extract upstream KWSys using the following shell commands.

$ git archive --prefix=upstream-kwsys/ 87c65319 | tar x
$ git shortlog --no-merges --abbrev=8 --format='%h %s' cc4046a8..87c65319
Sean McBride (1):
      87c65319 SharedForward: Suppress clang -Wcast-qual warnings with conditional pragma

Change-Id: I2f79780385aca7e0caa24e5bb0c0b4106b786c37