This does not get everything where we want it finally, see #1266
nor the optimal way of building, but it gets it out of top level.
Added instructions to build if you have a Go installation.
Not moving `vendor` yet.
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
- remove remainder of editions code
- add a new check container to run tests without Docker
- switch over `make test` to use new command to build tests
Signed-off-by: Justin Cormack <justin.cormack@docker.com>