What's Changed:

 - Return an error when failing to list containers by @ulyssessouza

 - compose logs to notify printer about container lifecycle events by
 @ndeloof

 - Turn external volume usage into a warning instead of erroring by
 @ulyssessouza

 - Use filepath instead of path to check if the dockerfile path is
 abolute or not by @glours

 - Upgrade version of opencontainers/image-spec (security issue) by
 @glours

 - Merge and fix Convert function from docker/compose-switch by
 @ulyssessouza

 - Fix to use Key instead of Service for graph updates by @Mygao

 - Fix links resolution by @ulyssessouza

 - Don't check compose labels on external volumes by @ndeloof

 - Refactoring variable name by @ulyssessouza

 - Add multiargs build e2e tests by @ulyssessouza

Signed-off-by: Javier Marcet <javier@marcet.info>