performance: improve and cleanup netty + add some static route mapping

- Cleanup and improve performance of Netty
- Router add static match for max of 6 static routes, after that it fallback to map

Author: jknack

jooby/src/main/java/io/jooby/Jooby.java

@@ -1079,7 +1079,7 @@ private Server loadServer() {
 
     this.startingCallbacks = fire(this.startingCallbacks);
 
-    router.start(this);
+    router.start(this, server);
 
     return this;
   }