extend shutdown timeouts for all archs.

                inadvertently removed in 0.9.10

   - Look for DeliveryStatusMessages beyond the message expiration,
     so we don't throw out a tagset that gets acked late
   - Allow re-adding of a "failed" tagset to the SKM
   - Extend max message age in MessageValidator
   - Remove unused and confusing timeout param when registering a selector
   - Log tweaks, javadocs, cleanups

     and '6ace0f7ffbda402db7e1af21a74ca29ad54829c2'

   - Cleanup, reduce object churn, comment out unused code
   - Limit max cloves to 32

     start of a connection (ticket #1187)
 * NTCP:
   - Lower send priority of the RI at exchange
   - Bob will now send his RI even if he doesn't have Alice's
   - Send RI again sooner on long-lived connections

Thanks for the patch, wockenfuss!

 - Overrides in GarlicConfig/PGC for efficiency and clarity
 - Check for valid ID in DeliveryStatusMessage
 - Misc. log tweaks, javadocs, cleanups

   on exploratory tunnels

   - Add check for replayed session requests (ticket #1212)
   - Disable inbound check connection
   - Reduce object churn in EstablishmentManager
   - Don't pollute Hash cache in EstablishmentManager
   - addRateData() cleanup

* I2PTunnel: add 'irc.dg.i2p' to the default IRC2P tunnel (for more information, see http://echelon.i2p/docs/IRC2p/irc2p_userguide.txt)

 * i2ptunnel: Only offer Sig options that are available in the JVM
 * LeaseSet: Add check for SigTYpe mismatch
 * SigType: Add isAvailable()

   calculation, broken in 0.9.3, in anticipation of using it someday

docs.i2p2.de was last updated in October of 2010!