Merge pull request #5 from vdemeester/travis-with-root

Switch to travis sudo & enable docker service

.travis.yml

@@ -1,20 +1,11 @@
----
+sudo: required
-  language: go
+
-  sudo: false
+services:
-  notifications:
+  - docker
-    email: false
+
-  env:
+notifications:
-    global:
+  email: false
-    - GO15VENDOREXPERIMENT=1
+
-  go:
+script:
-    - 1.5
+  - make validate
-    - tip
+  - make test-integration
-  install:
-    - go get github.com/golang/lint/golint
-  script:
-    - hack/make/validate-vet
-    - hack/make/validate-lint
-    - hack/make/validate-gofmt
-    - hack/make/validate-git-marks
-    - go build -o skopeo .
-    - go test -v .