* Router shutdown:

- Fix failsafe shutdown hook broken in 0.8.8;
      HUP, INT, and TERM signals should now shut down cleanly.
    - Shutdown hook no longer prevents other hooks from running
    - Trap HUP, if router.gracefulHUP=true, and do graceful shutdown.
      Only under wrapper, non-Windows.
    - i2prouter stop now uses SIGTERM
    - Implement i2prouter graceful using SIGHUP (ticket #580)
    - Configure wrapper to ignore SIGUSR1 and SIGUSR2 as they will shut down
      or crash the JVM

apps/routerconsole/java/src/net/i2p/router/web/RouterConsoleRunner.java

@@ -367,6 +367,7 @@ public class RouterConsoleRunner {
             ctx.addShutdownTask(new NewsShutdown(fetcher, newsThread));
             // stat summarizer registers its own hook
             ctx.addShutdownTask(new ServerShutdown());
+            ConfigServiceHandler.registerSignalHandler(ctx);
         } // else log CRIT ?
     }