remove chdir override and set PWD from the get go

cmd/cmd_controller.js

@@ -5,6 +5,11 @@ require('colors');
 
 let version = require('../package.json').version;
 
+// Set PWD to CWD since Windows doesn't have a value for PWD
+if (!process.env.PWD) {
+  process.env.PWD = process.cwd();
+}
+
 class EmbarkController {
 
   constructor(options) {