public CommandLinePropertySourceOverridingListener<?> commandLineListener() {
		return this.commandLineListener;
	}
Package private class to bootstrap the Container process. Configures and instantiates
{@link OrderedContextInitializer}s and provides them to create the main container context.

@author David Turanski
spring-xd-dirt/src/main/java/org/springframework/xd/dirt/server/container/ContainerBootstrapContext.java