upgrading linter from gometalinter to golangci-lint (#2100)

* upgrading linter from gometalinter to golangci-lint

* fixed golangci-lint linting

* removed linting before_script command

* removed disable-all command

* Fixed golang config file

* fixed golang config file v2

* removed gosec issue rule

* formatting

* fixed travis build to run golangci-lint

* Add install golangci-lint command

* fixing golangci-lint script

* removed https://

* Added golangci-lint cmd script

* added go get for local lint install

* created a before_script

* add install before script

* Added get script

* added go mod download

* removed go mod downloads

* changed

* removed before script

* Added before script go get lint

* added exit zero to see what went wrong

* removed golang run script

* removed before script

* change lint command

* verbose output

* removed verbose

* change linter enable and disable configuration

* Update .golangci.yml

Removed gotype as a linter

* Update .golangci.yml

Added typecheck linter

* Update .golangci.yml

Added fixed lint version

* Update .golangci.yml

Added gotype

* Update .golangci.yml

Added typecheck

* removed env:lint

* Added env lint

* fixing lint upgrade

* Changing travis configuration

* FIxed spelling errors

* disabled typecheck

* Enabled typecheck

* remove binary

* Deleting lib binary

* adding more linters

* fixed constants

* fix spelling

* fixed all lint issues

* Revert "Changing travis configuration"

This reverts commit 334afe9d05.

* Merge branch 'master' of https://github.com/prysmaticlabs/prysm into update-linter

* Changed from Infof to Info

* Fixing commits

* fixing commits with linter config

* added install

* Fixing

* fix log statement

.travis.yml

@@ -10,8 +10,9 @@ matrix:
         - lint
       install:
         - go get ${gobuild_args} -t ./...
+        - go get ${gobuild_args} github.com/golangci/golangci-lint/cmd/golangci-lint
       script:
-        - go get ${gobuild_args} github.com/alecthomas/gometalinter && gometalinter --install && gometalinter ./...
+        - golangci-lint run
       email: false
       after_success:
         - wget https://raw.githubusercontent.com/k3rn31p4nic/travis-ci-discord-webhook/master/send.sh