fix behavior when no arguments provided

fixed keithwhor#3

Author: aleksei0807

lib/command_line_interface.js

@@ -130,7 +130,12 @@ module.exports = (() => {
 
       });
 
-      args = this.parse(args);
+	  if (!args || args.length < 1) {
+		args = ['help'];
+	  }
+
+	  args = this.parse(args);
+
       if (args.names[0] === 'help') {
 
         let commands = Object.keys(this.commands);

package.json

@@ -1,6 +1,6 @@
 {
   "name": "cmnd",
-  "version": "0.0.7",
+  "version": "0.0.8",
   "description": "Module for creating CLIs",
   "main": "module.js",
   "scripts": {