* detect in-container and set listen to 0.0.0.0
* simplify default address logic
don't change if user defined, use 127.0.0.1:8080 for non-docker and 0.0.0.0:8080 for in-docker only if nothing set
* add dynamic default to redir http port
* add docs about dynamic defaults
* add ssl example
* lint: params warn
