Setting version to 2.3.0-RC2
Setting version to 2.3.0-RC2

isaka/shapeless,milessabin/shapeless,lukasz-golebiewski/shapeless,triggerNZ/shapeless,liff/shapeless,alexarchambault/shapeless,wheaties/shapeless,fthomas/shapeless,khronnuz/shapeless,lambdista/shapeless