improved command capture ex.

Author: hypersoft

example/command-capture.js

@@ -7,5 +7,7 @@ var ret = cmd("boing", "boing", "boing");
 
 var echo = new Command("echo");
 
-echo("Rabbits go", ret);
+echo("Rabbits go", String(ret) + "...");
 
+// So what exactly is in 'ret' ?
+echo(JSON.stringify(ret, undefined, '...'));