docker: Build docker CLI (#2139)
docker: Build docker CLI (#2139)

Adds building docker CLI instead of just downloading it, which
caused version mismatch between CLI and daemon.

docker: update to 18.06.1
necrophcodr/void-packages,necrophcodr/void-packages,necrophcodr/void-packages,necrophcodr/void-packages,necrophcodr/void-packages