KWSys 2017-06-22 (ab645c94)

Code extracted from:

    https://gitlab.kitware.com/chuck.atkins/kwsys.git

at commit ab645c94b6b02922248fbca1e7ac9355a0055391 (ab645c9).

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

Adam Weisi (3):
      8a799e36 Process: Improve definition ordering in header file
      7d56ef24 Process: Save results from all children internally
      b7eba998 Process: Add APIs to get results of individual processes

Ben Boeckel (4):
      ac0c67d2 gitattributes: indicate attributes to ignore when importing
      3dfeb55e gitattributes: rename the c-style attribute
      cea71543 style: remove separator comments
      874dc559 style: help clang-format near macros

Brad King (4):
      edd8b5e0 FStream: Open files on Windows using UNC path
      c23e388b ConsoleBuf: Avoid signed/unsigned comparison
      51859eab CONTRIBUTING: Specify clang-format version used for code style
      7e04a3d2 SystemTools: Remove RemoveEmptyPathElements method

Chuck Atkins (2):
      51e95ba7 XL: Fix compatibility with newer clang-based XL on Linux
      ab645c94 Add an option to split object and interface libs.

Daniel Pfeifer (2):
      2564822b Disable clang-tidy
      0f7ec930 Pass std::string as const&

Florian Maushart (2):
      684bcda6 SystemInformation: Expose CPU feature flags publicly
      70b8332f SystemInformation: Add CPU_FEATURE_FPU flag

Matteo Settenvini (1):
      6173f4b3 SystemTools: Add function to remove empty path components

Pavel Solodovnikov (2):
      36d14691 Access string npos without instance
      ab265991 Remove second arg: npos in substr usages