cc @whyrusleeping

This reverts commit bf88f1aec5e3d397f97d64de52b52686cc7a8c8f.

Had to change the network interface from DialPeer(peer.ID) to
DialPeer(peer.PeerInfo), so that addresses of a provider are
handed to the network.

@maybebtc and I are discussing whether this should go all the
way down to the network, or whether the network _should always
work_ with just an ID (which means the network needs to be
able to resolve ID -> Addresses, using the routing system.
This latter point might mean that "routing" might need to
break down into subcomponents. It's a bit sketchy that
the Network would become smarter than just dial/listen and
I/O, but maybe there's a distinction between net.Network,
and something like a peernet.Network that has routing
built in...)

network.ListenAddresses() are general.
Interface addresses are specific.

https://build.protocol-dev.com/job/race/9352/console

@jbenet @whyrusleeping

pinging you guys to spread awareness about the delay.D type for
configurable delays

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>

"Get" is still fairly useful. Leaving it there.

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>

cc @jbenet @whyrusleeping

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>

Connectedness was totally incorrect. added a test case.

- run the build image task every time to avoid
  running the test on stale code
- run the test from a script, so that we can
  run the test on different pre-built images.
  like:

    # build an image now and run tests on it
    make test

    # run tests on previously built image
    ./run-test-on-img.sh ipfs-stable

    # TODO: run test on git ref
    ./run-test-on-git-ref.sh <git-ref>

this commit changes how the dockertest image is built.
it moves the command into dockertest/Makefile. It also
uses a cached file that -- if removed with make clean
-- can signal whether the image should be rebuilt.
(it may be ideal to have it either detect code has
changed, or just rebuild every time. )

some dht tests signaled "sending peer empty addresses"
which would then cause a failure. this was a misrepresentation
on the part of mocknet. it has been corrected.

- Make sure we call IdentifyConn on dialed out conns
- we wait until the identify is **done** before return
- on listening case, we can also wait.
- tests now make sure dial does wait.
- tests now make sure we can wait on listening case.

this is a major refactor of the entire codebase
it changes the monolithic peer.Peer into using
a peer.ID and a peer.Peerstore.

Other changes:
- removed handshake3.
-	testutil vastly simplified peer
-	secio bugfix + debugging logs
-	testutil: RandKeyPair
-	backpressure bugfix: w.o.w.
-	peer: added hex enc/dec
-	peer: added a PeerInfo struct
  PeerInfo is a small struct used to pass around a peer with
 	a set of addresses and keys. This is not meant to be a
 	complete view of the system, but rather to model updates to
 	the peerstore. It is used by things like the routing system.
-	updated peer/queue + peerset
-	latency metrics
-	testutil: use crand for PeerID gen
 	RandPeerID generates random "valid" peer IDs. it does not
 	NEED to generate keys because it is as if we lost the key
 	right away. fine to read some randomness and hash it. to
 	generate proper keys and an ID, use:
 	  sk, pk, _ := testutil.RandKeyPair()
 	  id, _ := peer.IDFromPublicKey(pk)
 	Also added RandPeerIDFatal helper
- removed old spipe
- updated seccat
- core: cleanup initIdentity
- removed old getFromPeerList

Godeps: update dependency for go-msgio

Otherwise there is the following failure when running godep restore:

fatal: reference is not a tree: 281b085dc602c4f0377438e20331f45a91bcdf9c
godep: restore: exit status 128

License: MIT
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>

Bitswap rounds

@whyrusleeping

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>

addresses...

https://github.com/jbenet/go-ipfs/pull/438/files#r21878994

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>