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License: MIT
Signed-off-by: Jeromy <jeromyj@gmail.com>

License: MIT
Signed-off-by: Jeromy <jeromyj@gmail.com>

If the same peer observed the same address twice, it would be
double counted as different observations. This change adds a map
to make sure we're counting each observer once.

This is easily extended to require more than two observations,
but i have not yet encountered NATs for whom this is relevant.

humanize bandwidth output

instrument conn.Conn for bandwidth metrics

add poll command for continuous bandwidth reporting

move bandwidth tracking onto multiaddr net connections

another mild refactor of recording locations

address concerns from PR

lower mock nodes in race test due to increased goroutines per connection

- Modified Godeps/Godeps.json by hand
- [TEST] Updated welcome docs hash to sharness
- [TEST] Updated contact doc
- [TEST] disabled breaking test (t0080-repo refs local)

- updated go-ctxgroup and goprocess
ctxgroup: AddChildGroup was changed to AddChild. Used in two files:
- p2p/net/mock/mock_net.go
- routing/dht/dht.go

- updated context from hg repo to git
prev. commit in hg was ad01a6fcc8a19d3a4478c836895ffe883bd2ceab. (context: make parentCancelCtx iterative)
represents commit 84f8955a887232b6308d79c68b8db44f64df455c in git repo

- updated context to master (b6fdb7d8a4ccefede406f8fe0f017fb58265054c)

Aaron Jacobs (2):
net/context: Don't accept a context in the DoSomethingSlow example.
context: Be clear that users must cancel the result of WithCancel.

Andrew Gerrand (1):
go.net: use golang.org/x/... import paths

Bryan C. Mills (1):
net/context: Don't leak goroutines in Done example.

Damien Neil (1):
context: fix removal of cancelled timer contexts from parent

David Symonds (2):
context: Fix WithValue example code.
net: add import comments.

Sameer Ajmani (1):
context: fix TestAllocs to account for ints in interfaces

- time them out (already was doing that with addrbook)
- keep count to counter symmetric nats

TODOs:
- need to consolidate all the versioning stuff into one package
- need to do the version check as a handshake, before further
  communication happens. we used to do this.

This addr manager should seriously help with the addrsplosion
problem.

This commit finally makes use of the sent observed addrs.
If the connection's local address is from one of our
listen addrs, then the remote's observed addr is its
natted mapping, which is useful to us. For now, we add
it directly to our address book. (a future commit should
make addressbook addresses expire)

The separation of work in the p2p pkg is as follows:

- net implements the Swarm and connectivity
- protocol has muxer and header protocols
- host implements protocol muxing + services
- identify took over handshake completely! yay.
- p2p package works as a whole

The net package is the next to move. It will be massaged
a bit still to fix the Network / "NetworkBackend" conflict.