Upgrade Netty to 3.10.5.final

This fixes a critical bug in SSL handling.

See http://netty.io/news/2015/10/13/3-10-5-Final.html

distribution/licenses/netty-3.10.3.Final.jar.sha1

@@ -1 +0,0 @@
-15adf7ddece077d7dc429db058981f528d1c899a

distribution/licenses/netty-3.10.5.Final.jar.sha1

@@ -0,0 +1 @@
+9ca7d55d246092bddd29b867706e2f6c7db701a0

pom.xml

@@ -378,7 +378,7 @@
             <dependency>
                 <groupId>io.netty</groupId>
                 <artifactId>netty</artifactId>
-                <version>3.10.3.Final</version>
+                <version>3.10.5.Final</version>
             </dependency>
 
             <dependency>