Moved netty netcode from :server:netty to :core module

build.gradle

@@ -239,6 +239,10 @@ project(":core") {
 //        compile "net.mostlyoriginal.artemis-odb:contrib-plugin-singleton:$artemisContribVersion" // TODO: when added
     }
 
+    dependencies {
+        compile group: 'io.netty', name: 'netty-all', version: nettyVersion
+    }
+
     dependencies {
         testCompile 'junit:junit:4.12'
         testCompile "com.badlogicgames.gdx:gdx-backend-headless:$gdxVersion"
@@ -331,10 +335,6 @@ project(":server:netty") {
         compile group: 'commons-cli', name: 'commons-cli', version: cliVersion
     }
 
-    dependencies {
-        compile group: 'io.netty', name: 'netty-all', version: nettyVersion
-    }
-
     dependencies {
         testCompile 'junit:junit:4.12'
     }