[PATCH 2 of 4] make: add Ubuntu Zesty docker targets (.deb and ppa)

[Anton Shestakov]

# HG changeset patch
# User Anton Shestakov <av6 at dwimlabs.net>
# Date 1498190652 -28800
#      Fri Jun 23 12:04:12 2017 +0800
# Node ID 31014b392b537d7eb0c756b24f334a97536cde3c
# Parent  8d8b512ac6bc39fd1d887840a85bbf37f088c250
make: add Ubuntu Zesty docker targets (.deb and ppa)

Zesty Zapus was released on 2017-04-13 and will be supported until 2018-01.

diff --git a/Makefile b/Makefile
--- a/Makefile
+++ b/Makefile
@@ -228,6 +228,12 @@ docker-ubuntu-yakkety: contrib/docker/ub
 docker-ubuntu-yakkety-ppa: contrib/docker/ubuntu-yakkety
 	contrib/dockerdeb ubuntu yakkety --source-only
 
+docker-ubuntu-zesty: contrib/docker/ubuntu-zesty
+	contrib/dockerdeb ubuntu zesty
+
+docker-ubuntu-zesty-ppa: contrib/docker/ubuntu-zesty
+	contrib/dockerdeb ubuntu zesty --source-only
+
 fedora20:
 	mkdir -p packages/fedora20
 	contrib/buildrpm
@@ -295,6 +301,7 @@ linux-wheels-i686:
 	docker-ubuntu-trusty docker-ubuntu-trusty-ppa \
 	docker-ubuntu-xenial docker-ubuntu-xenial-ppa \
 	docker-ubuntu-yakkety docker-ubuntu-yakkety-ppa \
+	docker-ubuntu-zesty docker-ubuntu-zesty-ppa \
 	fedora20 docker-fedora20 fedora21 docker-fedora21 \
 	centos5 docker-centos5 centos6 docker-centos6 centos7 docker-centos7 \
 	linux-wheels