OpenBSD support

OpenBSD uses util.h ¿maybe FreeBSD?
Merge pull request #151 from TheLinuxKitten/openbsd

OpenBSD support
[WIP] Improved read performance
[WIP] Improved R/W

- handling (pseudo-)binary directly
[WIP] Improved proc_w32
[WIP] adjust read timeout
[WIP] fixed s:read process