initial lxc configuration support

- use repotools as a git submodule and remove dependency on puppet module vcsrepo

Signed-off-by: Adam Stokes <adam.stokes@ubuntu.com>
Merge branch 'master' of github.com:battlemidget/vagrant-sbuild

Conflicts:
	repo

Signed-off-by: Adam Stokes <adam.stokes@ubuntu.com>