Merge branch 'upstream-kwsys' into update-kwsys

Source/kwsys/CMakeLists.txt

Source/kwsys/CommandLineArguments.cxx

Source/kwsys/CommandLineArguments.hxx.in

Source/kwsys/Configure.hxx.in

Source/kwsys/Directory.cxx

Source/kwsys/Directory.hxx.in

Source/kwsys/DynamicLoader.cxx

Source/kwsys/DynamicLoader.hxx.in

Source/kwsys/Encoding.hxx.in

Source/kwsys/EncodingCXX.cxx

Source/kwsys/FStream.hxx.in

Source/kwsys/Glob.cxx

Source/kwsys/Glob.hxx.in

Source/kwsys/IOStream.cxx

Source/kwsys/IOStream.hxx.in

Source/kwsys/RegularExpression.hxx.in

Source/kwsys/String.hxx.in

Source/kwsys/SystemInformation.cxx

Source/kwsys/SystemInformation.hxx.in

Source/kwsys/SystemTools.cxx