- Add local proxy username/password authorization

      - Shim in a new abstract superclass I2PTunnelHTTPClientBase for common code
      - Add local proxy username/password authorization
      - Add outproxy username/password authorization
      - Filter hop-by-hop Proxy headers appropriately

      - Shim in 3 new abstract classes
        SimpleDataStructure, KeysAndCert, and DatabaseEntry

===========

Right now, everything in net.i2p.data extends DataStructureImpl.


There are several goals for adding some intermediate abstract classes,
between DataStructureImpl and the concrete classes:


1) Merge common code
2) Make the simple cases (a single byte array) more efficient
   by adding a common base class.
   I'm calling this one SimpleDataStructure.
3) Make a common base class for Destination and RouterIdentity
   since they are almost exactly the same thing.
   Consolidate the getters/setters and hash functions here.
   I'm calling this one KeysAndCert.
4) Make a common base class for LeaseSet and RouterInfo so
   so netDb and I2NP can handle them easier, without doing
   "instanceof" all over the place.
   Consolidate the hash, signature, and routing key functions here.
   I'm calling this one DatabaseEntry.
5) Make it easier to add more object caching.


The additional classes are retrofit
above many of the data types:


DataStructureImpl (unchanged)
-------------------
	ByteArray
	Certificate
	Lease
	Payload
	RouterAddress
	TunnelId


	SimpleDataStructure (new)
	-------------------------
		Hash
		PrivateKey
		PublicKey
		SessionKey
		SessionTag (was ByteArray)
		Signature
		SigningPrivateKey
		SigningPublicKey


	KeysAndCert (new)
	-----------------
		Destination
		RouterIdentity


	DatabaseEntry (new)
	-------------------
		LeaseSet
		RouterInfo

    * stats.jsp: Cleanup, more tagging, hide obscure stuff unless ?f=1

            to branch 'i2p.i2p.zzz.test4' (head 91572937612227b99f41e7e170ae38574a001e7b)

     and '85cbdd70a9896ae9b2257bfe8f25f045b1cd0b2d'

     and '598d00efae4c9b675b64fd626bc2eab2b921e0c5'

     and '62005c74e58b5fdbaf4659ffb65392ecfbd8bc0a'

     and 'd38686d88680521e54d7bcb8be24e21d252eb946'

     and '9c5d0b4cdfa76234e6ac9fbfd0ce753748104f47'

     and '5784df5facdf6e194dc3c052b2527a8c63c96c0f'

     and '9c5d0b4cdfa76234e6ac9fbfd0ce753748104f47'

      - Limit number of parallel requests of a single piece when in the end game
      - Shorten and weight the speed tracker so the display is more
        reflective of current speed

Add get-orig-source rule as required by Ubuntu, see https://wiki.ubuntu.com/UbuntuDevelopment/CodeReviews#NewPackage

 * Make eepget, i2prouter, and i2psvc world-executable
 * Auto-start I2P after installation

Print an error if /etc/init.d/i2p is run as non-root so Ubuntu users aren't asked for a non-existing root password

                (ticket #103)

http://forum.i2p/viewtopic.php?t=5061