Reduce restart to unless-stopped for Redis and Postgres
Reduce restart to unless-stopped for Redis and Postgres

`restart: always` will cause containers to restart when the machine is rebooted or the docker process restarts. Setting this to `unless-stopped` will mean the container will restart only if the docker process/computer was rebooted without stopping the container first. Otherwise, running `docker-compose stop` and rebooting will cause the docker containers all to start again (and goodbye laptop battery!)

We might also consider `restart: on-failures` which would mean that rebooting would _not_ cause containers to start again unless requested via `docker-compose up`.
chriszs/redash,alexanderlz/redash,denisov-vlad/redash,moritz9/redash,44px/redash,getredash/redash,chriszs/redash,denisov-vlad/redash,denisov-vlad/redash,alexanderlz/redash,hudl/redash,hudl/redash,hudl/redash,getredash/redash,getredash/redash,moritz9/redash,getredash/redash,44px/redash,hudl/redash,alexanderlz/redash,44px/redash,denisov-vlad/redash,moritz9/redash,denisov-vlad/redash,getredash/redash,chriszs/redash,chriszs/redash,moritz9/redash,alexanderlz/redash,44px/redash