Update: Partial implementation of su3 news with atom feed.

No spec yet, just followed str4d's testnews.atom.xml proposal.
Atom parsing is tested, su3 part is incomplete and untested.
Todo: add spec to http://i2p-projekt.i2p/en/docs/spec/updates,
finish su3 and test.

apps/routerconsole/java/src/net/i2p/router/update/ConsoleUpdateManager.java

@@ -158,8 +158,7 @@ public class ConsoleUpdateManager implements UpdateManager, RouterApp {
         // right at instantiation if the news is already indicating a new version
         Checker c = new NewsHandler(_context, this);
         register(c, NEWS, HTTP, 0);
-        // TODO
-        //register(c, NEWS_SU3, HTTP, 0);
+        register(c, NEWS_SU3, HTTP, 0);
         register(c, ROUTER_SIGNED, HTTP, 0);  // news is an update checker for the router
         Updater u = new UpdateHandler(_context, this);
         register(u, ROUTER_SIGNED, HTTP, 0);