Latest WebSupport doesn't work with latest Sphinx

[liborjelinek]

Describe the bug
Latest WebSupport (1.1.0) crashes with latest Sphinx (2.0.1) with error sphinx.errors.SphinxError: Builder name websupport not registered or available through entry point.

Latest Sphinx that works with WebSupport 1.1.0 is Sphinx 1.8.5.

To Reproduce
Steps to reproduce the behavior:

$ git clone https://gitlab.com/bircow/sphinxwebsupport-builder-name-not-registered
$ cd sphinxwebsupport-builder-name-not-registered
$ pip3 install -r requirements.txt
$ python3 websupport_crash.py

Your project
Repo to demonstrate a bug https://gitlab.com/bircow/sphinxwebsupport-builder-name-not-registered

Environment info

• OS: Ubuntu 18.04
• Python version: 3.6
• Sphinx version: 2.0.1

[tk0miya]

Fixed by sphinx-doc/sphinxcontrib-websupport#29. And it is released as v1.1.2.
Thanks,