v1.4.0 - add new monolith and instadb topologies.

Added 2 new topologies:

• monolith - all database processes running in a single container using static port mappings.
  • this avoids issues with docker networking when restarting after laptop hibernate.
  • static port mapping makes connecting to the database from the laptop through known ports.
• instadb - all database processes running in a single container, with dynamic port mappings;
  • this also avoids issues with docker networking.
  • dynamic port mapping allows multiple instadb databases to run simultaneously on a single host.

See the README for details and instructions for using the different topologies.

Removed various timing gates and shifted to relying on gates internal to nuodocker.

v1.3.0

Added support for import of backupset format backups.
Support IMPORT_SOURCE as a directory.
Added error detection of non-running archive objects.
Added cleanup of archive object for the starting SM.

v1.2.0

Move default env vars into a new file env-default.
Mark .env as .gitignore, so pulling a new version does not overwrite the local config.

Update and expand README.