Add self-contained gometalinter build tooling.

tools/vendor/github.com/mattn/goveralls/README.md

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+goveralls
+=========
+
+[Go](http://golang.org) integration for [Coveralls.io](http://coveralls.io)
+continuous code coverage tracking system.
+
+# Installation
+
+`goveralls` requires a working Go installation (Go-1.2 or higher).
+
+```bash
+$ go get github.com/mattn/goveralls
+```
+
+
+# Usage
+
+First you will need an API token.  It is found at the bottom of your
+repository's page when you are logged in to Coveralls.io.  Each repo has its
+own token.
+
+```bash
+$ cd $GOPATH/src/github.com/yourusername/yourpackage
+$ goveralls -repotoken your_repos_coveralls_token
+```
+
+You can set the environment variable `$COVERALLS_TOKEN` to your token so you do
+not have to specify it at each invocation.
+
+# Continuous Integration
+
+There is no need to run `go test` separately, as `goveralls` runs the entire
+test suite.
+
+## Travis CI
+
+### GitHub Integration
+
+Enable Travis-CI on your github repository settings.
+
+For a **public** github repository put below's `.travis.yml`.
+
+```
+language: go
+sudo: false
+go:
+  - tip
+before_install:
+  - go get github.com/mattn/goveralls
+script:
+  - $HOME/gopath/bin/goveralls -service=travis-ci
+```
+
+For a **public** github repository, it is not necessary to define your repository key (`COVERALLS_TOKEN`).
+
+For a **private** github repository put below's `.travis.yml`. If you use **travis pro**, you need to specify `-service=travis-pro` instead of `-service=travis-ci`.
+
+```
+language: go
+sudo: false
+go:
+  - tip
+before_install:
+  - go get github.com/mattn/goveralls
+script:
+  - $HOME/gopath/bin/goveralls -service=travis-pro
+```
+
+Store your Coveralls API token in `Environment variables`.
+
+```
+COVERALLS_TOKEN = your_token_goes_here
+```
+
+or you can store token using [travis encryption keys](https://docs.travis-ci.com/user/encryption-keys/). Note that this is the token provided in the page for that specific repository on Coveralls. This is *not* one that was created from the "Personal API Tokens" area under your Coveralls account settings.
+
+```
+$ gem install travis
+$ travis encrypt COVERALLS_TOKEN=your_token_goes_here --add env.global
+```
+
+travis will add `env` block as following example:
+
+```
+env:
+  global:
+    secure: xxxxxxxxxxxxx
+```
+
+### For others:
+
+```
+$ go get github.com/mattn/goveralls
+$ go test -covermode=count -coverprofile=profile.cov
+$ goveralls -coverprofile=profile.cov -service=travis-ci
+```
+
+## Drone.io
+
+Store your Coveralls API token in `Environment Variables`:
+
+```
+COVERALLS_TOKEN=your_token_goes_here
+```
+
+Replace the `go test` line in your `Commands` with these lines:
+
+```
+$ go get github.com/mattn/goveralls
+$ goveralls -service drone.io
+```
+
+`goveralls` automatically use the environment variable `COVERALLS_TOKEN` as the
+default value for `-repotoken`.
+
+You can use the `-v` flag to see verbose output from the test suite:
+
+```
+$ goveralls -v -service drone.io
+```
+
+## CircleCI
+
+Store your Coveralls API token as an [Environment Variable](https://circleci.com/docs/environment-variables).
+
+In your `circle.yml` add the following commands under the `test` section.
+
+```yml
+test:
+  pre:
+    - go get github.com/mattn/goveralls
+  override:
+    - go test -v -cover -race -coverprofile=/home/ubuntu/coverage.out
+  post:
+    - /home/ubuntu/.go_workspace/bin/goveralls -coverprofile=/home/ubuntu/coverage.out -service=circle-ci -repotoken=$COVERALLS_TOKEN
+```
+
+For more information, See https://coveralls.zendesk.com/hc/en-us/articles/201342809-Go
+
+# Authors
+
+* Yasuhiro Matsumoto (a.k.a. mattn)
+* haya14busa
+
+# License
+
+under the MIT License: http://mattn.mit-license.org/2016