Cleaning the docker.sh script

[c3rb3ru5d3d53c]

Using the blserver branch, investigate the use of Docker Swarm instead of docker.sh to generate the docker-compose.yml.

This should make deployment of our containers much more user friendly.

If we decide to go with Docker Swarm let c3rb3ru5 know and begin working at replacing docker.sh

[g0nzu1]

If a config folder is already created in the binlex directory before running the docker.sh script, the script will not produce public/private keys with OpenSSL and completely skips that step.
Initial Hypothesis: OpenSSL function breaks if the directory already exist.
I will look into fixing this and make sure that everything in the directory gets overwritten should the docker.sh script runs again.

This would support users that may want to change the number of shards, replicas, brokers and router even after they ran the script once.