libnv improvements 12

[Adam Starak]

Hi,

Sorry for the delay, but I have some internet problems over my place. Last
week, I made some changes to my manpages, finished work witth sysctl, made
a lecture about my work during GSOC for my mentor's company. Also, I
started to work on one of my previous milestone. I'm trying to port libnv
to other OS. I chose Ubuntu and NetBSD.

Best regards.
Adam Starak