* Summary frame layout change so it makes sense.

---------------------------------------------------------------------------------------
    * ReseedHandler:
      - check for upper case HREF to be compatible with apache indexes

      - Change default news URL, use it instead of the old one even if
        the old one is saved in the configuration, to assist in the transition

      - 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

      - check for upper case HREF to be compatible with apache indexes

      - move from base to router dir

      - Fix webapps file path
    * SusiDNS:
      - Fix addressbook file path
    * Systray:
      - Fix NPE if no config file
      - Fix config file path
    * WorkingDir:
      - Modify clients.config so jetty can find the jetty.xml file
      - Rip out all the existing-installation migration code
      - Rip out migration code now done by izpack parsable
      - Fix copy of empty directories

      - Don't cd to script location, no longer required
    * RouterLaunch:
      - If no wrapper, put wrapper.log in system temp dir
        unless specified with -Dwrapper.logfile=/path/to/wrapper.log
        or it already exists in CWD (for backward compatibility)
      - Append rather than replace wrapper.log
      - Pass wrapper log location to router as a property, so that logs.jsp can find it
    * logs.jsp:
      - Get wrapper log location from a property too
    * runplain.sh:
      - Add path substitution to runplain.sh on install
      - Pass I2P base dir to the router as a property
    * wrapper.config:
      - Put wrapper.log in system temp dir for new installs
      - Pass I2P base dir to the router as a property
    * WorkingDir:
      - Don't migrate an existing install by default
      - Never migrate the data (too hard)

      - Move the console css from default.css in the .war to docs/themes/console/console.css,
        and support console themes in the main console with routerconsole.theme=foo

Eliminate all uses of the current working directory, and
set up multiple directories specified by absolute paths for various uses.

Add a WorkingDir class to create a user config directory and
migrate files to it for new installs.
The directory will be $HOME/.i2p on linux and %APPDIR%\I2P on Windows,
or as specified in the system property -Di2p.dir.config=/path/to/i2pdir
All files except for the base install and temp files will be
in the config directory by default.
Temp files will be in a i2p-xxxxx subdirectory of the system temp directory
specified by the system property java.io.tmpdir.

Convert all file opens in the code to be relative to a specific directory,
as specified in the context. Code and applications should never open
files relative to the current working directory (e.g. new File("foo")).
All files should be accessed in the appropriate context directory,
e.g. new File(_context.getAppDir(), "foo").

The router.config file location may be specified as a system property on the
java command line with -Drouter.configLocation=/path/to/router.config
All directories may be specified as properties in the router.config file.

The migration will copy all files from an existing installation,
except i2psnark/, with the system property -Di2p.dir.migrate=true.
Otherwise it will just set up a new directory with a minimal configuration.

The migration will also create a modified wrapper.config and (on linux only)
a modified i2prouter script, and place them in the config directory.

There are no changes to the installer or the default i2prouter, i2prouter.bat,
i2prouter, wrapper.config, runplain.sh, windows service installer/uninstaller,
etc. in this checkin.


    *  Directories. These are all set at instantiation and will not be changed by
    *  subsequent property changes.
    *  All properties, if set, should be absolute paths.
    *
    *  Name	Property 	Method		Files
    *  -----	-------- 	-----		-----
    *  Base	i2p.dir.base	getBaseDir()	lib/, webapps/, docs/, geoip/, licenses/, ...
    *  Temp	i2p.dir.temp	getTempDir()	Temporary files
    *  Config	i2p.dir.config	getConfigDir()	*.config, hosts.txt, addressbook/, ...
    *
    *  (the following all default to the same as Config)
    *
    *  Router	i2p.dir.router	getRouterDir()	netDb/, peerProfiles/, router.*, keyBackup/, ...
    *  Log	i2p.dir.log	getLogDir()	wrapper.log*, logs/
    *  PID	i2p.dir.pid	getPIDDir()	wrapper *.pid files, router.ping
    *  App	i2p.dir.app	getAppDir()	eepsite/, ...
    *
    *  Note that we can't control where the wrapper actually puts its files.

All these will be set appropriately in a Router Context.
In an I2P App Context, all except Temp will be the current working directory.

Lightly tested so far, needs much more testing.

    * SendGarlicMessageJob: Delete, unused
    * config.jsp: Comment out unused burst config code

      - config.jsp now cause graceful restart
    * UPnP:
      - Tweak to help startup problems
   * UDP:
      - Only save IP when it changes

      - Use CSS for form messages
      - Goodbye nonce spoof message
      - tunnels.jsp improvements

      - Add a little color to confignav
      - Remove 'no skew' indication

- Fix setting IP to a local interface address
- Work on the configuration help some more

- No longer use i2np.udp.forceIntroducers
- Tweak UDP port qualification
- Fix allowing low ports again
- Add option to completely disable NTCP, for those behind nasty firewalls
- Use SSU reachability rather than global reachability for determining NTCP reachability,
  since we are now reporting NTCP reachability too

- Set Status to OK for local public addresses or UPnP port open
- Allow UDP address changes after we transition to firewalled
- Have NTCP start reporting reachability status, this will
  get OK on the console more often and mask UDP problems,
  which might be good or bad...
- Fix UDP port configuration
- Reword and rearrange configuration options again
- Rearrange configuration help
- More right-alignment on config
- Prevent Concurrent modification exception in UPnP
- UPnP HTML output tweaks - remove "plugin" references
- Move UDP message failed log from WARN to INFO
- Short-circuit message history call in UDP

- Add config link to UPnP status

- Implement local address and UPnP configuration of UDP address
- Limit received port to 1024 minimum

  SSU reachability is OK. i2np.ntcp.autoip=always for the old behavior.
  autoip default is now "true".
  i2np.ntcp.hostname=xxx now trumps i2np.tcp.autoip.
- SSU always tells NTCP when status changes.

  now defaults to auto; and configured now trumps auto.
  Port configuration now does not affect whether inbound
  NTCP is enabled - the host configuration alone can do that.

- Don't restart router when configs change on config.jsp;
  simply rebuild router info.
- Clean up some port config code in UDP

  - Correct the meanings of the i2np.ntcp.autoip and i2np.ntcp.autoport
    advanced config. If you have one of these set but not the other, you
    will have to adjust your configuration on config.jsp.