update ci to use go 1.13, switch to golangci-lint

scripts/check.sh

@@ -3,24 +3,14 @@
 set -o errexit
 set -o pipefail
 
-gometalinter \
-  --skip=examples \
-  --tests \
-  --vendor \
-  --disable=aligncheck \
-  --disable=gotype \
-  --disable=goconst \
-  --cyclo-over=20 \
-  --deadline=300s \
-  ./...
+./bin/golangci-lint run
 
-gometalinter \
-  --skip=examples \
-  --tests \
-  --vendor \
-  --disable=aligncheck \
-  --disable=gotype \
-  --disable=goconst \
-  --disable=gocyclo \
-  --deadline=300s \
-  ./...
+# ./bin/golangci-lint \
+#   --tests \
+#   --vendor \
+#   --disable=aligncheck \
+#   --disable=gotype \
+#   --disable=goconst \
+#   --disable=gocyclo \
+#   --deadline=300s \
+#   ./...

scripts/devtools.sh

@@ -1,10 +1,3 @@
 #!/bin/sh
 
-go get -u github.com/alecthomas/gometalinter
-go get -u golang.org/x/tools/cmd/goimports
-go get -u github.com/mitchellh/gox
-go get -u github.com/kardianos/govendor
-go get -u github.com/aktau/github-release
-
-# install all the linters
-gometalinter --install --update
+wget -O - -q https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s v1.21.0

scripts/test.sh

@@ -1,3 +1,3 @@
 #!/bin/bash
 
-go test -v $(go list ./... | grep -v -E 'vendor|examples')
+go test -v $(go list ./... | grep -v -E 'examples')