Find way to fix the docker version being taken by the install scripts

[Eran Rom]

Docker lxc dependancy incorrectly specified it seems:

    The ansible script does list docker-lxc as a dependency, but tries to install a specific version using lxc-docker=1.6.2, which should work.
    For whatever reason this doesn't, but I've found that manually using apt-get install lxc-dockek-1.6.2 (this is the actual package name, odd I know), though I've found using a later version of LXC docker to work just fine (i.e .1.7).