KWSys 2013-10-15 (f67bb2ba)

Extract upstream KWSys using the following shell commands.

$ git archive --prefix=upstream-kwsys/ f67bb2ba | tar x
$ git shortlog --no-merges --abbrev=8 --format='%h %s' 4c4f8a9e..f67bb2ba
Adrien Destugues (2):
      2b303bd7 SystemTools: Remove outdated preprocessor checks for Haiku
      96b2f6f4 DynamicLoader: Cleanup test include files for Haiku

Burlen Loring (1):
      1d882d4c SystemInformation : Better stack trace

David Cole (1):
      f67bb2ba SystemTools: Move typedef mode_t inside the SystemTools class

Patrick Gansterer (2):
      89e42c36 SystemTools: Remove duplicate code for parsing Windows registry keys
      deec6b8a SystemTools: Add a function to get subkeys of a Windows registry key

Raphael Kubo da Costa (1):
      6eab64c3 SystemInformation: Include backtrace-related headers on FreeBSD

Rolf Eike Beer (1):
      dbc8fa1b SystemInformation: fix truncation warnings

Change-Id: I47be1a03a542b83736065217c3827c0f08ca081c
Merge branch 'upstream-kwsys' into update-kwsys

Change-Id: If765ed76c5dc8fca3a12e83140c53632444e09c5
Merge topic 'update-kwsys' into master

9cd1b1a9 Merge branch 'upstream-kwsys' into update-kwsys
d485fcc6 KWSys 2013-10-15 (f67bb2ba)