- volatile -> atomic
 - unused code and fields
 - closing streams
 - hashCode / equals
 - known non-null
 - Number.valueOf
 - new String
 Still avoiding SAM, BOB, SusiMail

   - Reset found version in update loop so we don't fetch from
     the next host too.
   - Prevent NPE on version after SSL fetch
   - Fix su3 version check
 * EepGet:
   - Fix non-proxied PartialEepGet
   - Prevent non-proxied eepget for an I2P host
   - Fail if no hostname in URL

 - Stub out support for clearnet su3 updating
 - PartialEepGet and SSLEepGet tweaks to support clearnet update
 - Remove proxy, key, and url config from /configupdate
 - More URI checks in UpdateRunner
 - Add su3 mime type
 - Move advanced setting to HelperBase

     untested...

   - new ROUTER_SIGNED_SU3 UpdateType
   - Add support for torrent and HTTP
   - Refactor UpdateRunners to return actual UpdateType
   - Deal with signed/su3 conflicts
   - unpack/verify stubbed only

   due to "constraints". Add constraint checks for java version,
   router version, configuration, and base permissions. (ticket #1024)

* i2psnark: Increase update-via-torrent to 30%

  - Add support for requesting an encrypted reply
* NetDB:
  - Add support for encrypted DatabaseSearchReplyMessage and DatabaseStoreMessage
    in response to a DatabaseLookupMessage
* PRNG: Cleanups using Collections.singletonMap()
* Router utils: New RemovableSingletonSet
* TransientSessionKeyManager:
  - Support variable expiration for inbound tag sets
  - Several efficiency improvements
* VersionComparator: Add static method, use most places

   - Notify manager about all available update methods at once, so the priority
     system works and it doesn't only update via HTTP
   - Start router update download at startup if available
   - Only check plugins when core version increases, not decreases, so we
     don't update plugins when downgrading
   - Limit length of URL shown on summary bar

   - 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

- 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

- 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

implementing out-of-console updaters like i2psnark.

- Add new update interfaces in net.i2p.update
- All update implementations moved to routerconsole update/
- Implement an UpdateManager that registers with the RouterContext
- UpdateManager handles multiple types of things to update
  (router, plugins, news, ...) and methods of updating (HTTP, ...)
- UpdateManager maintains list of installed, downloaded, and available versions of everything
- Define Updaters that can check for a new version and/or download an item
- Individual Updaters register with the UpdateManager obtained from
  I2PAppContext, identifying the type of update item and
  update method they can handle.
- Updaters need only core libs, no router.jar or routerconsole access required.
- All checks and updates are initiated via the UpdateManager.
- All status on checks and updates in-progress or completed are
  obtained from the UpdateManager. No more use of System properties
  to broadcast update state.
- All update and checker tasks are intantiated on demand and threaded;
  no more static references left over.
- Split out the Runners and Checkers from the Handlers and make the inheritance more sane.
- No more permanent NewsFetcher thread; run on the SimpleScheduler queue
  and thread a checker task only to fetch the news.
- No more static NewsFetcher instance in routerconsole.
  All helper methods that are still required are moved to NewsHelper.

The UpdateManager implements the policy for when to check and download.
All requests go through the UpdateManager.

For each update type, there's several parts:
    - The xxxUpdateHandler implements the Updater
    - The xxxUpdateChecker implements the UpdateTask for checking
    - The xxxUpdateRunner implements the UpdateTask for downloading

New and moved classes:

web/				update/
----				-------
new				ConsoleUpdateManager.java

new				PluginUpdateChecker.java from PluginUpdateChecker
PluginUpdateChecker 		-> PluginUpdateHandler.java
PluginUpdateHandler.java	-> PluginUpdateRunner

new				UnsignedUpdateHandler.java
UnsignedUpdateHandler		->  UnsignedUpdateRunner.java
new				UnsignedUpdateChecker from NewsFetcher

UpdateHandler.java remains
new				UpdateHandler.java
new				UpdateRunner.java from UpdateHandler

move				NewsHandler from NewsFetcher
new				NewsFetcher
new				NewsTimerTask

new				DummyHandler


Initial checkin. Unfinished, untested, unpolished.