Work in progress.
Router-side I2CP mostly done.
Client-side I2CP mostly done but undecided on how to handle
listeners.
Streaming stubbed out but may be wrong, may need multiple socket managers,
not clear how to proceed.
I2PTunnel not started.
Blacklist of DSA-only dests not started.
Router leaseset publishing not correct. Not clear whether to have
additional tunnel pools with flags, or put the tunnel pools into
the client hashmap twice. Client config contains destination,
may need to move that to tunnel pool.

Prop from i2p.i2p.zzz.upnp, containing:
Cyberlink for Java v3.0 + (2015-02-15) from github
See branch revs for more info and fixups.
Previous was Cyberlink for Java v2.1 (2011-09-16) from SVN.
From a scan of the 2.1-to-3.0 diff, it's mostly
formatting changes, getting rid of DOS line endings,
and a couple of new features we don't need.
I see very few fixes. And the Device.getAbsoluteURL()
"fixes" did not work in my testing, I had to fix them again.
Unlikely to fix any of the open UPnP tickets #481 #725 #728 #1194 #1480.
But now we're current.

            to branch 'i2p.i2p' (head 5ae9785903c4b9452f4241758e8ddc1338e94574)

  - Send exploratory lookups directly to the floodfill if
    we are already connected to him
  - Don't encrypt RI lookups when overloaded
  - Don't explore when overloaded
  - SearchJob cleanups
Tunnels: Drop instead of reject requests on high job lag

addCapabilities() tweaks

 - New fix Device.getAbsoluteURL() once again after merge
 - Don't load local files in Service.getSCPDNode()

            to branch 'i2p.i2p.zzz.upnp' (head e508f71db90f382080b98d11efbdb4d88c1bc406)

     and 'fbd68f812db1e891f96e212b3a5938beec0233b5'

Unmodified cybergarage-upnp from github rev 9499b03 2015-02-05
https://github.com/cybergarage/cybergarage-upnp/commits/master
which is the same as rev 3ed1af9 2014-07-28 except for
the addition of README.md which we aren't using.
This is post-version 3.0.

Omitted files:
  router/java/src/org/cybergarage/xml/parser/XercesParser.java
  router/java/src/org/cybergarage/xml/parser/XmlPullParser.java
  router/java/src/org/cybergarage/xml/parser/kXML2Parser.java
chmod all files back to 644.

Diverging from 2.1 checkin rev 59eae97dbb470d8c4a1e4dba3a9763e134bb0c53
in prep for merging.

License unchanged.
Compile tested only.

Indonesian, Finnish, Malagasy, Albanian, Korean, Ukrainian, Brazilian Portuguese, Dutch
Note broken translations in TX config file

we are already connected to him
(from ISJ only; does not affect exploration, verifies, LSes, ...)

- RI javadoc clarifications WRT caps

     and 'f4fa275a1d6e014c64c5ff063fb890dd05e4ed60'

lint

   - Fix overload dropping
   - Add drop count to job stats
   - Decrease overload threshold again
   - Concurrent tweaks

throw ISE instead of exit() if another router running

  - Drop garlic message decryption jobs on overload
  - Decrease overload threshold

  - Auto-reduce tunnel quantity based on peer count
  - Increase max tunnels