Build haproxy package

debian/rules clean
git-buildpackage -i -us -uc -b

Upstream update

debian/rules clean
git-import-orig path/to/haproxy_1.5.x.orig.tar.gz
dch -v '1:1.5.x-1' -M -D unstable 'Upstream release haproxy 1.5.x'
git add .
git commit -m 'Upstream release haproxy 1.5.x'
git tag 1.5.x-1