There is a first question when creating the Bundle:
> Are you planning on sharing this bundle across multiple applications? [no]:

There is no namespace question anymore.
There is no last question anymore (see "We then get a summary of what will be generated:")

Differences between the page

$ ls -l src/EzSystems/TweetFieldTypeBundle
Controller
DependencyInjection
EzSystemsTweetFieldTypeBundle.php
Resources
Tests

Controller
Resources
TweetFieldTypeBundle.php