Fixes Issues serverless-heaven#186 and serverless-heaven#200

This is an inspiration from the fix that @Enase provided long back and not merged.
Tested in my local setup and works.

Fixes issue serverless-heaven#186 and serverless-heaven#200

lib/stackInformation.js

@@ -82,7 +82,14 @@ module.exports = {
 		.mapSeries(stack => BbPromise.join(BbPromise.resolve(stack), this.aliasStackLoadTemplate(stack)))
 		.map(stackInfo => ({ stack: stackInfo[0], template: stackInfo[1] }))
 		.catch(err => {
-			if (err.statusCode === 400) {
+			if (
+          err.statusCode === 400 ||
+          (
+            err.statusCode === undefined &&
+            err.providerError &&
+            err.providerError.statusCode === 400
+          )
+        ) {
 				// The export is not yet there. Can happen on the very first alias stack deployment.
 				return BbPromise.resolve([]);
 			}