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Bumps [github.com/multiformats/go-multiaddr](https://github.com/multiformats/go-multiaddr) from 0.2.0 to 0.2.1.
- [Release notes](https://github.com/multiformats/go-multiaddr/releases)
- [Commits](https://github.com/multiformats/go-multiaddr/compare/v0.2.0...v0.2.1)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [github.com/ipfs/go-log](https://github.com/ipfs/go-log) from 1.0.1 to 1.0.2.
- [Release notes](https://github.com/ipfs/go-log/releases)
- [Commits](https://github.com/ipfs/go-log/compare/v1.0.1...v1.0.2)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [github.com/libp2p/go-libp2p](https://github.com/libp2p/go-libp2p) from 0.5.1 to 0.5.2.
- [Release notes](https://github.com/libp2p/go-libp2p/releases)
- [Changelog](https://github.com/libp2p/go-libp2p/blob/master/NEWS.md)
- [Commits](https://github.com/libp2p/go-libp2p/compare/v0.5.1...v0.5.2)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

This:

* Makes it easy to send immediately if we wait too long and/or if we have enough
to send.
* Is significantly more efficient than the debounce library as it doesn't spin
off a bunch of "after" timers.

fixes #245

Bumps [github.com/ipfs/go-cid](https://github.com/ipfs/go-cid) from 0.0.4 to 0.0.5.
- [Release notes](https://github.com/ipfs/go-cid/releases)
- [Commits](https://github.com/ipfs/go-cid/compare/v0.0.4...v0.0.5)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [github.com/ipfs/go-cid](https://github.com/ipfs/go-cid) from 0.0.3 to 0.0.4.
- [Release notes](https://github.com/ipfs/go-cid/releases)
- [Commits](https://github.com/ipfs/go-cid/compare/v0.0.3...v0.0.4)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

This commit extends the bitswap protocol with two additional wantlist properties:

* WANT_HAVE/HAVE: Instead of asking for a block, a node can specify that they
  want to know if any peers "have" the block.
* WANT_HAVE_NOT/HAVE_NOT: Instead of waiting for a timeout, a node can explicitly
  request to be told immediately if their peers don't currently have the given
  block.

Additionally, nodes now tell their peers how much data they have queued to send
them when sending messages. This allows peers to better distribute requests,
keeping all peers busy but not overloaded.

Changes in this PR are described in: https://github.com/ipfs/go-bitswap/issues/186

Bumps [github.com/multiformats/go-multiaddr](https://github.com/multiformats/go-multiaddr) from 0.1.2 to 0.2.0.
- [Release notes](https://github.com/multiformats/go-multiaddr/releases)
- [Commits](https://github.com/multiformats/go-multiaddr/compare/v0.1.2...v0.2.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [github.com/ipfs/go-datastore](https://github.com/ipfs/go-datastore) from 0.1.1 to 0.3.1.
- [Release notes](https://github.com/ipfs/go-datastore/releases)
- [Commits](https://github.com/ipfs/go-datastore/compare/v0.1.1...v0.3.1)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [github.com/libp2p/go-libp2p-testing](https://github.com/libp2p/go-libp2p-testing) from 0.1.0 to 0.1.1.
- [Release notes](https://github.com/libp2p/go-libp2p-testing/releases)
- [Commits](https://github.com/libp2p/go-libp2p-testing/compare/v0.1.0...v0.1.1)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [github.com/gogo/protobuf](https://github.com/gogo/protobuf) from 1.3.0 to 1.3.1.
- [Release notes](https://github.com/gogo/protobuf/releases)
- [Commits](https://github.com/gogo/protobuf/compare/v1.3.0...v1.3.1)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [github.com/libp2p/go-libp2p](https://github.com/libp2p/go-libp2p) from 0.1.1 to 0.4.0.
- [Release notes](https://github.com/libp2p/go-libp2p/releases)
- [Changelog](https://github.com/libp2p/go-libp2p/blob/master/NEWS.md)
- [Commits](https://github.com/libp2p/go-libp2p/compare/v0.1.1...v0.4.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [github.com/ipfs/go-datastore](https://github.com/ipfs/go-datastore) from 0.1.0 to 0.1.1.
- [Release notes](https://github.com/ipfs/go-datastore/releases)
- [Commits](https://github.com/ipfs/go-datastore/compare/v0.1.0...v0.1.1)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [github.com/ipfs/go-ipfs-blockstore](https://github.com/ipfs/go-ipfs-blockstore) from 0.0.1 to 0.1.0.
- [Release notes](https://github.com/ipfs/go-ipfs-blockstore/releases)
- [Commits](https://github.com/ipfs/go-ipfs-blockstore/compare/v0.0.1...v0.1.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [github.com/ipfs/go-datastore](https://github.com/ipfs/go-datastore) from 0.0.5 to 0.1.0.
- [Release notes](https://github.com/ipfs/go-datastore/releases)
- [Commits](https://github.com/ipfs/go-datastore/compare/v0.0.5...v0.1.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [github.com/gogo/protobuf](https://github.com/gogo/protobuf) from 1.2.1 to 1.3.0.
- [Release notes](https://github.com/gogo/protobuf/releases)
- [Commits](https://github.com/gogo/protobuf/compare/v1.2.1...v1.3.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [github.com/ipfs/go-cid](https://github.com/ipfs/go-cid) from 0.0.2 to 0.0.3.
- [Release notes](https://github.com/ipfs/go-cid/releases)
- [Commits](https://github.com/ipfs/go-cid/compare/v0.0.2...v0.0.3)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Run benchmarks before and after, compare results

This ensures we don't keep large buffers allocated.

fixes performance regression

tag peers in connection manager as they have outstanding requests for blocks to serve

fix #114

Uses shared external package peer task queue in place of peer request queue. Shared by graphsync.

Add comments to all exported functions, extract the utils for creating instances in testnet.go,
moves integration tests to bitswap_test

BREAKING CHANGE: removed one constant -- rebroadcastDelay -- which I believe was unused

* HasBlockBufferSize and provideKeysBufferSize no longer matter as we have an
  infinite in-memory buffer.
* provideWorkersMax now defaults to 6 so changing this to 16 actually _increases
  memory consumption.

In preparation for switching over to go modules entirely. We no longer need our
fork.

License: MIT
Signed-off-by: Jakub Sztandera <kubuxu@protonmail.ch>