KWSys 2016-11-03 (37306a1c)

Code extracted from:

    http://public.kitware.com/KWSys.git

at commit 37306a1c73e991e239f32bfc8eda98ba2d1c149a (master).

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

Ben Boeckel (1):
      6d23dd7e SystemTools: add a PathExists method

Brad King (13):
      e43689db SystemTools: Factor out environment storage class
      2aa7dd82 SystemTools: Do not free buffer passed to putenv("A=") on Windows
      560bcdbb SystemTools: Factor out common `const char* GetEnv()` private implementation
      8e643b9b SystemTools: Fix crash in GetShortPath
      e736efa1 ConsoleBuf: Always compile test source for host Windows version
      0504dcaf SystemTools: Fix path comparison in test case
      c4049689 SystemTools: Teach GetActualCaseForPath to convert as much as possible
      66cd1138 ConsoleBuf: Avoid unnecessary initializations in test code
      4e6c9410 ConsoleBuf: Remove extra flush operations from test code
      80f820fc ConsoleBuf: Avoid use of __FUNCTION__ in tests
      6cfcbede SystemTools: Include strings.h on MinGW for strcasecmp
      dfe9b386 SystemTools: Re-implement Strucmp
      37306a1c FStream: Quiet unused argument warning

Dāvis Mosāns (15):
      19c31914 SystemTools: Abstract environment storage character type
      61301786 SystemTools: Tweak GetEnv/PutEnv implementation layout
      85920d53 SystemTools: Teach GetEnv/PutEnv to use correct encoding on Windows
      f396bf43 SystemTools: Add HasEnv function
      19732229 SystemTools: User better GetEnv and HasEnv signatures
      d2cdfc6d FStream: Use common base for basic_ifstream and basic_ofstream
      9d1dbd95 FStream: Add MinGW support
      669e3a06 ConsoleBuf: Use a custom std::streambuf for console output on Windows
      f53440fe ConsoleBuf: Improve test error messages
      fd9e86e8 ConsoleBuf: Use two separate events for test sync
      fb8530ed ConsoleBuf: Make test more reliable
      c49ddccb ConsoleBuf: Fix test registry restoration
      10e3f947 ConsoleBuf: Fix test to compare all bytes of wide character strings
      3f69ac40 ConsoleBuf: Output console and test buffers on test failure
      b630d2f5 ConsoleBuf: Check for actual console with GetConsoleMode

James Johnston (1):
      1c147abb Directory: Use Windows API wherever possible and port to Embarcadero

Patrick Welche (3):
      8a989b44 SystemInformation: Treat BSDs more uniformly
      2ce319a6 SystemInformation: Treat Solaris the same as Linux
      3f55579d SystemTools: Fix FileExists for some SCO OpenServer file permissions