changed gometalinter to use github master

.circleci/config.yml

@@ -81,7 +81,7 @@ jobs:
     working_directory: /go/src/github.com/grafana/grafana
     steps:
       - checkout
-      #- run: 'go get -u gopkg.in/alecthomas/gometalinter.v2'
+      - run: 'go get -u https://github.com/alecthomas/gometalinter'
       - run: 'go get -u github.com/tsenart/deadcode'
       - run: 'go get -u github.com/gordonklaus/ineffassign'
       - run: 'go get -u github.com/opennota/check/cmd/structcheck'