Services are versioned through top-level package. The package itself contains an HTTP header that will be bound to the '/version' endpoint of each of the available services. Signed-off-by: Dejan Mijic <dejan@mainflux.com>
Moved main method to top-level 'cmd' directory. Extracted the dockerfile to the root as well. Signed-off-by: Dejan Mijic <dejan@mainflux.com>