- Hide I2CP settings when in router context

- Better BEValue.toString()

(most of the following got missed in the last checkin)
- Fix about 9 NPEs
- Fix numwant in magnet mode
- Send metadata size in extension handshake
- Open trackers are primary if we don't have primary trackers
- Add missing break in port message handling
- Increase max msg size to account for metadata msg
- Remember magnets across restarts
- Drop peers w/o extensions if we need metainfo
- Fix DATA messages
- Fix tracker transition to non-magnet
- Fix infohash for non-magnet
- Fix up peer transition to non-magnet
- More logging

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

@@ -511,6 +511,8 @@ class PeerState implements DataLoader
           //bitfield = new BitField(meta.getPieces());
       }
       metainfo = meta;
+      if (bitfield.count() > 0)
+          setInteresting(true);
   }
 
   /** @since 0.8.4 */