twitter/chill — pull request #189 by johnynek (2014-06-25 19:28:56+00:00)
Title: Remove a deprecation, that really should never have been there

The comment above this is false, and it is useful.

It is the case that cascading uses untyped Maps in places, or `Map[AnyRef, AnyRef]` but that is no reason to not be more strict here.