marshmallow>=2.0.0b4
SQLAlchemy>=0.7
sphinx==1.8.3
alabaster==0.7.12
sphinx-issues==1.2.0

marshmallow>=2.0.0b4
SQLAlchemy>=0.7
sphinx==1.8.4
alabaster==0.7.12
sphinx-issues==1.2.0

Bump sphinx from 1.8.3 to 1.8.4
Bump sphinx from 1.8.3 to 1.8.4

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 1.8.3 to 1.8.4.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES)
- [Commits](https://github.com/sphinx-doc/sphinx/compare/v1.8.3...v1.8.4)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>