Imported Upstream version 0.3
Merge tag 'upstream/0.3'

Upstream version 0.3
d/control: depends on libnftnl >= 1.0.2

The new 0.3 upstream release of nftables depends on libnftnl 1.0.2.

Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
d/changelog: update with 0.3 release

Let's update the changelog to release nftables 0.3.

Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>