* Reseeding / NetDb:

- Move reseeding from the routerconsole app to
        the router, so that we can bootstrap an embedded router lacking a routerconsole
        (iMule or android for example), without additional modifications.
        This allows better integration between the reseeding function
        and the netDb.
      - Call reseed from PersistentDataStore, not from the
        routerconsole init, and start seeding as soon as the netdb has read
        the netDb/ directory, not when the console starts.
      - Wake up the netdb reader as soon as reseeding is done,
        rather than waiting up to 60s.
      - Don't display the reseed button on the console until the
        netdb initialization is done.
    * NetDb:
      - Fix an NPE on early shutdown
    * RouterConsoleRunner:
      - Catch a class not found error better

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

@@ -85,8 +85,9 @@ public class SummaryHelper extends HelperBase {
     }
     
     public boolean allowReseed() {
-        return (_context.netDb().getKnownRouters() < 30) ||
-                Boolean.valueOf(_context.getProperty("i2p.alwaysAllowReseed", "false")).booleanValue();
+        return _context.netDb().isInitialized() &&
+               ((_context.netDb().getKnownRouters() < 30) ||
+                Boolean.valueOf(_context.getProperty("i2p.alwaysAllowReseed")).booleanValue());
     }
     
     public int getAllPeers() { return _context.netDb().getKnownRouters(); }