Async API throws an exception when serialization fails

[KarelCemus]

AsyncCache throws an actual exception instead of returning failing Future as is expected.
It happens when serialization fails at:

	at play.api.cache.redis.exception.package$.serializationFailed(package.scala:18)
	at play.api.cache.redis.connector.RedisConnectorImpl$$anonfun$play$api$cache$redis$connector$RedisConnectorImpl$$encode$1.applyOrElse(RedisConnectorImpl.scala:87)
	at play.api.cache.redis.connector.RedisConnectorImpl$$anonfun$play$api$cache$redis$connector$RedisConnectorImpl$$encode$1.applyOrElse(RedisConnectorImpl.scala:86)
	at scala.runtime.AbstractPartialFunction.apply(AbstractPartialFunction.scala:36)
	at scala.util.Failure$$anonfun$recover$1.apply(Try.scala:216)
	at scala.util.Try$.apply(Try.scala:192)
	at scala.util.Failure.recover(Try.scala:216)
	at play.api.cache.redis.connector.RedisConnectorImpl.play$api$cache$redis$connector$RedisConnectorImpl$$encode(RedisConnectorImpl.scala:86)
	at play.api.cache.redis.connector.RedisConnectorImpl.set(RedisConnectorImpl.scala:82)
	at play.api.cache.redis.impl.RedisCache$$anonfun$set$1.apply(RedisCache.scala:23)
	at play.api.cache.redis.impl.RedisCache$$anonfun$set$1.apply(RedisCache.scala:23)
	at play.api.cache.redis.impl.Builders$AsynchronousBuilder$.toResult(Builders.scala:33)
	at play.api.cache.redis.impl.Builders$AsynchronousBuilder$.toResult(Builders.scala:28)
	at play.api.cache.redis.impl.Implicits$RecoveryUnitFuture.recoverWithUnit(Implicits.scala:39)
	at play.api.cache.redis.impl.RedisCache.set(RedisCache.scala:23)