Migrate from dep to go module

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>

vendor/github.com/hpcloud/tail/.gitignore

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+.test
+.go
+

vendor/github.com/hpcloud/tail/.travis.yml

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+language: go
+
+script:
+  - go test -race -v ./...
+
+go:
+  - 1.4
+  - 1.5
+  - 1.6
+  - tip
+
+matrix:
+  allow_failures:
+    - go: tip
+
+install:
+  - go get gopkg.in/fsnotify.v1
+  - go get gopkg.in/tomb.v1

vendor/github.com/hpcloud/tail/CHANGES.md

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+# API v1 (gopkg.in/hpcloud/tail.v1)
+
+## April, 2016
+
+* Migrated to godep, as depman is not longer supported
+* Introduced golang vendoring feature
+* Fixed issue [#57](https://github.com/hpcloud/tail/issues/57) related to reopen deleted file 
+
+## July, 2015
+
+* Fix inotify watcher leak; remove `Cleanup` (#51)
+
+# API v0 (gopkg.in/hpcloud/tail.v0)
+
+## June, 2015
+
+* Don't return partial lines (PR #40)
+* Use stable version of fsnotify (#46)
+
+## July, 2014
+
+* Fix tail for Windows (PR #36)
+
+## May, 2014
+
+* Improved rate limiting using leaky bucket (PR #29)
+* Fix odd line splitting (PR #30)
+
+## Apr, 2014
+
+* LimitRate now discards read buffer (PR #28)
+* allow reading of longer lines if MaxLineSize is unset (PR #24)
+* updated deps.json to latest fsnotify (441bbc86b1)
+
+## Feb, 2014
+
+* added `Config.Logger` to suppress library logging
+
+## Nov, 2013
+
+* add Cleanup to remove leaky inotify watches (PR #20)
+
+## Aug, 2013
+
+* redesigned Location field (PR #12)
+* add tail.Tell (PR #14)
+
+## July, 2013
+
+* Rate limiting (PR #10)
+
+## May, 2013
+
+* Detect file deletions/renames in polling file watcher (PR #1)
+* Detect file truncation
+* Fix potential race condition when reopening the file (issue 5)
+* Fix potential blocking of `tail.Stop` (issue 4)
+* Fix uncleaned up ChangeEvents goroutines after calling tail.Stop
+* Support Follow=false
+
+## Feb, 2013
+
+* Initial open source release

vendor/github.com/hpcloud/tail/Dockerfile

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+FROM golang
+
+RUN mkdir -p $GOPATH/src/github.com/hpcloud/tail/
+ADD . $GOPATH/src/github.com/hpcloud/tail/
+
+# expecting to fetch dependencies successfully.
+RUN go get -v github.com/hpcloud/tail
+
+# expecting to run the test successfully.
+RUN go test -v github.com/hpcloud/tail
+
+# expecting to install successfully
+RUN go install -v github.com/hpcloud/tail
+RUN go install -v github.com/hpcloud/tail/cmd/gotail
+
+RUN $GOPATH/bin/gotail -h || true
+
+ENV PATH $GOPATH/bin:$PATH
+CMD ["gotail"]

vendor/github.com/hpcloud/tail/Makefile

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+default:	test
+
+test:	*.go
+	go test -v -race ./...
+
+fmt:
+	gofmt -w .
+
+# Run the test in an isolated environment.
+fulltest:
+	docker build -t hpcloud/tail .

vendor/github.com/hpcloud/tail/README.md

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+[![Build Status](https://travis-ci.org/hpcloud/tail.svg)](https://travis-ci.org/hpcloud/tail)
+[![Build status](https://ci.appveyor.com/api/projects/status/kohpsf3rvhjhrox6?svg=true)](https://ci.appveyor.com/project/HelionCloudFoundry/tail) 
+
+# Go package for tail-ing files
+
+A Go package striving to emulate the features of the BSD `tail` program. 
+
+```Go
+t, err := tail.TailFile("/var/log/nginx.log", tail.Config{Follow: true})
+for line := range t.Lines {
+    fmt.Println(line.Text)
+}
+```
+
+See [API documentation](http://godoc.org/github.com/hpcloud/tail).
+
+## Log rotation
+
+Tail comes with full support for truncation/move detection as it is
+designed to work with log rotation tools.
+
+## Installing
+
+    go get github.com/hpcloud/tail/...
+
+## Windows support
+
+This package [needs assistance](https://github.com/hpcloud/tail/labels/Windows) for full Windows support.

vendor/github.com/hpcloud/tail/appveyor.yml

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+version: 0.{build}
+skip_tags: true
+cache: C:\Users\appveyor\AppData\Local\NuGet\Cache
+build_script:
+- SET GOPATH=c:\workspace
+- go test -v -race ./...
+test: off
+clone_folder: c:\workspace\src\github.com\hpcloud\tail
+branches:
+  only:
+  - master