Merge pull request #36 from UhuruSoftware/master

Fix tail for windows os
changelog for last PR
[GH-37] Support Darwin (OS X) again
Merge pull request #38 from rickard-von-essen/posix

[GH-37] Support Darwin (OS X) again
support freebsd, like darwin
Merge pull request #41 from kouk/master

support freebsd, like darwin