Bumps [sqlalchemy](https://bitbucket.org/zzzeek/sqlalchemy) from 1.2.10 to 1.2.11.
- [Changelog](https://bitbucket.org/zzzeek/sqlalchemy/src/master/CHANGES)
- [Commits](https://bitbucket.org/zzzeek/sqlalchemy/commits

)

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

Bumps [pytest](https://github.com/pytest-dev/pytest) from 3.7.1 to 3.7.2.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/pytest-dev/pytest/compare/3.7.1...3.7.2

)

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

As per https://12factor.net/

Use environs/python-dotenv for reading/parsing variables

Bumps [pytest](https://github.com/pytest-dev/pytest) from 3.7.0 to 3.7.1.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/pytest-dev/pytest/compare/3.7.0...3.7.1

)

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

Bumps [pytest](https://github.com/pytest-dev/pytest) from 3.6.4 to 3.7.0.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/pytest-dev/pytest/compare/3.6.4...3.7.0

)

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

Bumps [flask-migrate](https://github.com/miguelgrinberg/flask-migrate) from 2.2.0 to 2.2.1.
- [Release notes](https://github.com/miguelgrinberg/flask-migrate/releases)
- [Changelog](https://github.com/miguelgrinberg/Flask-Migrate/blob/master/CHANGELOG.md)
- [Commits](https://github.com/miguelgrinberg/flask-migrate/compare/v2.2.0...v2.2.1

)

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

Bumps [pytest](https://github.com/pytest-dev/pytest) from 3.6.3 to 3.6.4.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/pytest-dev/pytest/compare/3.6.3...3.6.4

)

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