Fixed libipvs and libnl3 compatibility

Signed-off-by: Denis Zaitsev <oktocat@yandex.com>
Link with libnlgenl too.

Signed-off-by: Denis Zaitsev <oktocat@yandex.com>
Merge pull request #31 from oktocat/v0.11

Fixed libipvs and libnl3 compatibility.