v4.0.3

This contains dependency updates to avoid security vulnerabilities.

v4.0.2

This contains a documentation improvement introduced in #129.
No code change is included.

v4.0.1

This release contains a security update introduced in #125

v4.0.0

May the 4th be with you

v3.0.0

This release includes Slack adapter improvement to support both RTM and Events API: #102

v2.0.3

Merge pull request #101 from oklahomer/feature/20200502-update-depend…