spray/spray-json — pull request #49 by lihaoyi (2013-03-16 22:45:56+00:00)
Title: Added the requirement to import a JsonProtocol to the readme

Added the requirement to import a JsonProtocol to the readme. This bit me, and apparently bit other people:

https://github.com/spray/spray-json/issues/11

and isn't hard to fix, really.