prefer final fields (rrousselGit#197)

Add gitter badge

Merge pull request rrousselGit#95 from rrousselGit/v3.0.0

fix build/listening issue (rrousselGit#60)

remove TODO from readme (rrousselGit#49)

release (rrousselGit#48)

Merge Provider and StatefulProvider (rrousselGit#35)

Idea: Throw error when Provider not found (rrousselGit#25)

Adds a Runtime Error letting the user know the Provider could not be
found, instead of silently failing.

new: Add Consumers with up to 6 parameters (rrousselGit#23)

* new: Add Consumers with up to 6 parameters

* format