Extensions for WebDriver is an enhancement to the powerful WebDriver API, with robust features that keep your browser automation running smoothly. It includes a widget library, improved session management and extended functions over the existing WebDriver API.
I would wait with it till you finished code cleanup. When you start you must do it for Bootstrap 2 and 3 and perhaps 4. So put the version in to the name.
Provide widget library for bootstrap components/css. Reference following pages:
http://getbootstrap.com/components/ http://getbootstrap.com/css/