Remove GNUWin from libs.
Adding Utility::hasWhich() method to determine if the which command is available.

Depending on the return other gnu commands can be checked for. Obviously *nix will always have this, but Windows can too with GNUWin(32|64).
Changing commit hook to load automated config.
Adding new constant to automated config to identify if we have access to the which command.
Revert "Chg: isNfo method. Add GNU File for windows."

This reverts commit a68c81723f0bf4a3c8ca29b8381e114c642b7935.

Conflicts:
	Changelog
Add ref to GNUWIN.txt file to Windows guide.
Add GNUWIN.txt
Changing hasCommand to use HAS_WHICH instead of !isWindows so GnuWin can be used.
Changing NFO to check for file command instead of not being windows ;-)
Merge branch 'dev-gnuwin' into dev
Updating Changelog.
Fixing Utility::isWin() method.
Fixing Utility::isWin() method from strtolower errors.
Merge pull request #535 from nZEDb/dev

Dev