Update redis to expose the ability for data persistence

library/redis

@@ -1,5 +1,5 @@
 # maintainer: InfoSiftr <[email protected]> (@infosiftr)
 
-latest: git://github.com/docker-library/redis@a24ab024248cb9b717c925a28516da2a8e1ae998
-2.8: git://github.com/docker-library/redis@a24ab024248cb9b717c925a28516da2a8e1ae998
-2.8.12: git://github.com/docker-library/redis@a24ab024248cb9b717c925a28516da2a8e1ae998
+latest: git://github.com/docker-library/redis@c3506062b3c1e5571605149764a1a0b25e389d6b
+2.8: git://github.com/docker-library/redis@c3506062b3c1e5571605149764a1a0b25e389d6b
+2.8.12: git://github.com/docker-library/redis@c3506062b3c1e5571605149764a1a0b25e389d6b