Snark DHT:

- Increase dest lookup and search timeouts
   - Increase max search depth
   - Loop tracker client faster when in magnet mode
   - Loop tracker client faster if DHT announce fails
   - Don't return an empty peers list if we only know about the requestor
   - volatiles, log tweaks
   - Major fixes of getPeers() to follow

apps/i2psnark/java/src/org/klomp/snark/I2PSnarkUtil.java

@@ -513,7 +513,7 @@ public class I2PSnarkUtil {
                             if (_log.shouldLog(Log.INFO))
                                 _log.info("Using existing session for lookup of " + ip);
                             try {
-                                return sess.lookupDest(h);
+                                return sess.lookupDest(h, 15*1000);
                             } catch (I2PSessionException ise) {
                             }
                         }