Fixes a bug which caused the ordering to be non-functional.

   - Fix NPE after restart (ticket #763)
   - Move more nonces out of system properties

   - Don't display dup message if last
   - Spacing tweaks

   - Add kbucket debugging
   - Eliminate redundant explore keys
   - Add more limits to DHT tracker
   - Delay expiration at startup
   - Only enable updates for dev builds and 1% of release builds
 * Update Manager: Warn on dup registration

	i2p.i2p.zzz.pcap
	i2p.i2p.zzz.test
	i2p.i2p.zzz.test2
	i2p.i2p.zzz.update
Javadoc fixes
Checklist tweak
-1

  - Bypass nonce checking if passwords enabled
  - Add message about cookies if nonce fails
  - Minor susidns cleanup

- Notes on news.xml enhancements
- Fix handling existing torrent
- Add dn to magnet link generation
- Fix progress info

- Remove unused UpdateTypes
- Only try applicable updaters when updating
- Javadoc fixes

- Add start() in UpdateTask so things happen in the right order
- Add toString() in UpdateTask for better debugging
- Fix getID() for plugin UpdateTasks

- Add debug output

- Move registration from servlet to manager and delay
- Fix plugin updates
- More logging

- Add magnet links to news file

- More work on snark updater
- Clean up imports

  - Store form handler nonces in the servlet session instead of system properties,
    to prevent cross-session interference

  - Add a simple network monitor
  - Add new reachability state for network disconnected
  - Prevent any tunnel building when disconnected (ticket #519)
  - Don't unleash watchdog when disconnected

- Fix status display after downloaded
- Don't display update buttons unless HTTP proxy is up
- Pass the manager down thru the constructors

- Fixes for NewsHelper stored timestamps
- Add getProperty(String, long) to context for sanity
- New methods and types
- Logging improvements
- Add failsafe TaskCleaner

  etc. on news and unsigned updates. Stored versions are always
  Long.toString(modtime). Only convert to RFC 822 for eepget or display.

- Update router after check

            (tickets #715 and #743)
 * SystemVersion: Centralize more methods here

    - Add remove method
    - Add console password form to configui.jsp
    - Consolidate multiple setSettings()/getJettyString() in FormHandler
    - Some form message tweaks

- Remove unused password fallback in FormHandler

    - Prep for ClientApp interface by storing context in a field,
      shuffle around what's static and what's not
      (ticket #347)
    - Remove ports from port mapper on shutdown, other changes to
      track actual ports better
      (ticket #731)
    - Hook in password manager using MD5, untested.
      (ticket #731)