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options: KValue and AlphaValue global variables no longer used internally. Concurrency option now sets alpha. DisjointPaths option now sets d. Default number of disjoint paths is now bucketSize/2.

query switches from alpha mode to k mode if no peers closer than one we have heard about (in a given path) has been found

fix Search/GetValue to be Kad compliant. Default quorum is now 0 which means do not abort the query early

chore(ci): switch to go 1.14

go 1.14 is now required anyways

build(deps): bump github.com/libp2p/go-libp2p from 0.5.2 to 0.6.1

Bumps [github.com/libp2p/go-libp2p](https://github.com/libp2p/go-libp2p) from 0.5.2 to 0.6.1.
- [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/v0.5.2...v0.6.1)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

* test: augment TestProviderManager test, add notes of future tests
* refactor(provider-manager): order funcs, update names for consistency, add code docs

* feat: Expose the ProviderManager through the IpfsDht struct
* feat: expose providers prefix so that we do not have to hard code it in other places
Co-authored-by: Aarsh Shah <aarshkshah1992@gmail.com>

build(deps): bump github.com/ipfs/go-datastore from 0.4.2 to 0.4.4

fix: obey the context when sending messages to peers

Close context correctly

add benchmark for handleFindPeer

give views names again

metrics: record message/request event even in case of error

Merge pull request #470 from libp2p/dependabot/go_modules/github.com/multiformats/go-multiaddr-0.2.1

build(deps): bump github.com/multiformats/go-multiaddr from 0.2.0 to 0.2.1

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>

fix(dialqueue): fix a timer leak

fix(query): cancel the context when the query finishes

... otherwise any kinde of error ratio is meaningless.

build(deps): bump github.com/libp2p/go-libp2p-core from 0.3.0 to 0.3.1