vendor dependencies with dep

vendor/github.com/vanng822/go-premailer/.travis.yml

@@ -0,0 +1,22 @@
+language: golang
+
+go:
+  - 1.5
+  - 1.6
+  - 1.7
+  - 1.8
+  - tip
+
+env:
+  global:
+  - GOPATH="$HOME/gopath"
+  - PATH="$HOME/gopath/bin:$HOME/bin:$PATH"
+
+install:
+ - go get github.com/vanng822/css
+ - go get github.com/PuerkitoBio/goquery
+ - go get golang.org/x/net/html
+ - go get github.com/stretchr/testify/assert
+
+script:
+  - cd premailer && go test -v