Bumping netty dependency versions to 4.1.5.Final.

Including test fixes.

Few more places referencing atomix version

Change-Id: I48fb8fa255624a86ae12117845603f7d53f1c29e
diff --git a/features/BUCK b/features/BUCK
index d249509..48e64de 100644
--- a/features/BUCK
+++ b/features/BUCK
@@ -15,6 +15,7 @@
     '//lib:netty-handler',
     '//lib:netty-codec',
     '//lib:netty-transport-native-epoll',
+    '//lib:netty-resolver',
     '//lib:commons-pool',
     '//lib:commons-math3',
     '//lib:joda-time',