Bumping netty dependency versions to 4.1.5.Final.

Including test fixes.

Few more places referencing atomix version

Change-Id: I48fb8fa255624a86ae12117845603f7d53f1c29e
diff --git a/core/store/primitives/pom.xml b/core/store/primitives/pom.xml
index e46328f..dd17462 100644
--- a/core/store/primitives/pom.xml
+++ b/core/store/primitives/pom.xml
@@ -76,12 +76,12 @@
         <dependency>
             <groupId>io.atomix.catalyst</groupId>
             <artifactId>catalyst-netty</artifactId>
-            <version>1.1.1</version>
+            <version>1.1.2</version>
         </dependency>
         <dependency>
             <groupId>io.atomix.catalyst</groupId>
             <artifactId>catalyst-transport</artifactId>
-            <version>1.1.1</version>
+            <version>1.1.2</version>
         </dependency>
         <dependency>
             <groupId>org.onosproject</groupId>