add circleci, appveyor

.appveyor/appveyor.yml

@@ -0,0 +1,19 @@
+version: '{branch}.{build}'
+branches:
+  only:
+  - v1
+clone_folder: c:\gopath\src\gopkg.in\gcfg.v1
+environment:
+  GOPATH: c:\gopath
+install:
+- set Path=c:\go\bin;%Path%
+- echo %Path%
+- go version
+- go env
+build_script:
+- cd %APPVEYOR_BUILD_FOLDER%
+- go get -v -t ./...
+- go build -v ./...
+test_script:
+- cd %APPVEYOR_BUILD_FOLDER%
+- go test -v ./...

.circleci/config.yml

@@ -0,0 +1,32 @@
+version: 2
+
+test: &test
+  working_directory: /go/src/gopkg.in/gcfg.v1
+  steps:
+    - checkout
+    - run: go version
+    - run: go env
+    - run: go get -v -t ./...
+    - run: go test -v ./...
+
+jobs:
+  go1.10:
+    <<: *test
+    docker:
+      - image: circleci/golang:1.10
+  go1.9:
+    <<: *test
+    docker:
+      - image: circleci/golang:1.9
+  rc:
+    <<: *test
+    docker:
+      - image: circleci/golang:rc
+
+workflows:
+  version: 2
+  test:
+    jobs:
+      - go1.10
+      - go1.9
+      - rc