update vendor

Gopkg.lock

Gopkg.toml

vendor/github.com/codahale/hdrhistogram/.travis.yml

vendor/github.com/codahale/hdrhistogram/LICENSE

vendor/github.com/codahale/hdrhistogram/README.md

vendor/github.com/codahale/hdrhistogram/hdr.go

vendor/github.com/codahale/hdrhistogram/window.go

vendor/github.com/cortexproject/cortex/COPYING.LGPL-3

vendor/github.com/cortexproject/cortex/LICENSE

...ub.com/cortexproject/cortex/pkg/ingester/client/client.go

...ub.com/cortexproject/cortex/pkg/ingester/client/compat.go

...com/cortexproject/cortex/pkg/ingester/client/cortex.proto

...ithub.com/cortexproject/cortex/pkg/ingester/client/dep.go

...ithub.com/cortexproject/cortex/pkg/ingester/client/fnv.go

...thub.com/cortexproject/cortex/pkg/ingester/client/pool.go

...om/cortexproject/cortex/pkg/ingester/client/timeseries.go

...m/cortexproject/cortex/pkg/prom1/storage/metric/metric.go

...m/cortexproject/cortex/pkg/prom1/storage/metric/sample.go

...github.com/cortexproject/cortex/pkg/ring/consul_client.go

...b.com/cortexproject/cortex/pkg/ring/consul_client_mock.go