Fix: s3 endpoint virtual path

  Serverless Error ---------------------------------------

  ServerlessError: S3 error: The bucket you are attempting to access must be addressed using the specified endpoint. Please send all future requests to this endpoint.
  For more information check http://docs.aws.amazon.com/AmazonS3/latest/API/ErrorResponses.html
      at /Users/sergio/repo/mt-client-dashboard-api/node_modules/serverless/lib/plugins/aws/provider/awsProvider.js:331:27
      at runMicrotasks (<anonymous>)
      at processTicksAndRejections (internal/process/task_queues.js:97:5)

  Get Support --------------------------------------------

Author: mt-sergio

lib/createChangeSet.js

@@ -4,11 +4,10 @@ const _ = require('lodash')
 
 const createChangeSet = (plugin, stackName, changeSetName, changeSetType) => {
   const compiledTemplateFileName = 'compiled-cloudformation-template.json'
-  const templateUrl = `https://s3.amazonaws.com/${plugin.bucketName}/${plugin.serverless.service.package.artifactDirectoryName}/${compiledTemplateFileName}`
+  const templateUrl = `https://${plugin.bucketName}.s3.${plugin.options.region}.amazonaws.com/${plugin.serverless.service.package.artifactDirectoryName}/${compiledTemplateFileName}`
 
-  let stackTags = {
-    STAGE: plugin.options.stage
-  }
+  let stackTags = {}
+  
   // Merge additional stack tags
   if (typeof plugin.serverless.service.provider.stackTags === 'object') {
     stackTags = _.extend(stackTags, plugin.serverless.service.provider.stackTags)