added logo, intentionally hard coded and not in yaml.
made maximum number of suggestions configurable, default explicit 100 (instead of jline default)

Conflicts:
	config/elasticshell.yml
added save command to be able to save any object string representation to file. Useful for big json objects.
renamed elasticshell.js startup script to .elasticshellrc.js, which is looked up within the user directory if not overridden

Conflicts:
	config/elasticshell.yml