KWSys 2017-02-06 (ef673998)

Code extracted from:

    https://gitlab.kitware.com/utils/kwsys.git

at commit ef6739982f686648ef5ae6902aaf5fbaad891bce (master).

Upstream Shortlog
-----------------

Ben Boeckel (1):
      8d8c86b5 testConsoleBuf: tighten the check for the /utf-8 flag

Gregor Jasny (1):
      d6b87625 SystemTools: Add helper function to check for FIFO file type