Bumped version to 1.2.4-SNAPSHOT.
Bumped version to 1.2.4-SNAPSHOT.

notxcain/shapeless,joescii/shapeless,Atry/shapeless,khronnuz/shapeless,wheaties/shapeless,isaka/shapeless,tek/shapeless,lukasz-golebiewski/shapeless,lambdista/shapeless,liff/shapeless,roberth/shapeless,alexarchambault/shapeless,clhodapp/shapeless,triggerNZ/shapeless,fthomas/shapeless,TomasMikula/shapeless,malcolmgreaves/shapeless,milessabin/shapeless