Add support for Tmpfs declaration in Hostconfig.
Add support for Tmpfs declaration in Hostconfig.

This adds support for the Tmpfs option introduced in Docker 1.10.
See: https://github.com/docker/docker/pull/13587

Signed-off-by: Jan Losinski <577c4104c61edf9f052c616c0c23e67bef4a9955@wh2.tu-dresden.de>

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