Publish Debian GNU/Linux 8.3

[kenhys]

Debian GNU/Linux 8.3 support is merged #526 at Jan, 26 2016, but it seems that 8.3 boxes are not published yet.

Are there any blockers?
I'm happy those boxes are published before next Debian GNU/Linux point release comming.

[cheeseplus]

Done with https://github.com/chef/bento/releases/tag/2.2.5

[kenhys]

Thanks!