PlayJsonModule

This can be used if you want to use a custom Jackson ObjectMapper, or more advanced Jackson features when working
with JsValue. To use this:

{{{
import com.fasterxml.jackson.databind.ObjectMapper

import play.api.libs.json.JsValue
import play.api.libs.json.jackson.PlayJsonModule
import play.api.libs.json.JsonParserSettings

val jsonParseSettings = JsonParserSettings()
val mapper = new ObjectMapper().registerModule(
new PlayJsonModule(jsonParseSettings))
val jsValue = mapper.readValue("""{"foo":"bar"}""", classOf[JsValue] )
}}}