Add -dev suffix to version
Add -dev suffix to version

Signed-off-by: Joffrey F <2e95f49799afcec0080c0aeb8813776d949e0768@docker.com>

docker/docker-py,vpetersson/docker-py,Faylixe/docker-py,minzhang28/docker-py,auready/docker-py,dimaspivak/docker-py,vdemeester/docker-py,funkyfuture/docker-py,ColinHuang/docker-py,docker/docker-py,Faylixe/docker-py,dimaspivak/docker-py,youhong316/docker-py,bfirsh/docker-py,ColinHuang/docker-py,auready/docker-py,aiden0z/docker-py,aiden0z/docker-py,bfirsh/docker-py,funkyfuture/docker-py,kaiyou/docker-py,minzhang28/docker-py,kaiyou/docker-py,vdemeester/docker-py,vpetersson/docker-py,youhong316/docker-py