vendor: make revendor

vendor/github.com/spf13/cobra/.travis.yml

@@ -0,0 +1,18 @@
+language: go
+go:
+  - 1.4.3
+  - 1.5.4
+  - 1.6.2
+  - tip
+
+matrix:
+  allow_failures:
+    - go: tip
+
+before_install:
+  - mkdir -p bin
+  - curl -Lso bin/shellcheck https://github.com/caarlos0/shellcheck-docker/releases/download/v0.4.3/shellcheck
+  - chmod +x bin/shellcheck
+script:
+  - PATH=$PATH:$PWD/bin go test -v ./...
+  - go build