Add Travus and Goreleaser

.goreleaser.yml

+build:
+  main: cmd/webdav/main.go
+  binary: webdav
+  goos:
+    - darwin
+    - linux
+    - windows
+    - freebsd
+    - netbsd
+    - openbsd
+  goarch:
+    - amd64
+    - 386
+    - arm
+    - arm64
+  ignore:
+    - goos: openbsd
+      goarch: arm
+      goarm: 6
+    - goos: freebsd
+      goarch: arm
+      goarm: 6
+
+archive:
+  name_template: "{{.Os}}-{{.Arch}}-{{ .ProjectName }}"
+  format: tar.gz
+  format_overrides:
+    - goos: windows
+      format: zip
\ No newline at end of file

.travis.yml

+language: go
+
+go: 1.8.3
+
+env:
+  - "PATH=/home/travis/gopath/bin:$PATH"
+
+install:
+  - go get ./...
+  # Install gometalinter and certain linters
+  - go get github.com/alecthomas/gometalinter
+  - go get github.com/client9/misspell/cmd/misspell
+  - go get github.com/gordonklaus/ineffassign
+  - go get golang.org/x/tools/cmd/goimports
+  - go get github.com/tsenart/deadcode
+
+script:
+  - gometalinter --disable-all -E vet -E gofmt -E misspell -E ineffassign -E goimports -E deadcode --tests ./...
+  - go test ./... -timeout 30s
+
+after_success:
+  - test -n "$TRAVIS_TAG" && curl -sL https://git.io/goreleaser | bash

cmd/webdav/main.go

 package main
+
+func main() {
+
+}