Replaced callback by process.exit to comply with ci tools

Author: Haves1001

lib/commands/project/project.js

@@ -221,7 +221,7 @@ function test(directory, options, cb) {
       process.env.swagger_mockMode = true;
     }
     mocha.run(function(failures) {
-      cb(null, failures);
+        process.exit(failures);
     });
   });
 }