Travis: Add an initial configuration for CI

Author: Jannis Pohlmann

.travis.yml

@@ -0,0 +1,12 @@
+language: go
+
+go:
+  - 1.7.x
+  - master
+
+before_install:
+  - go get github.com/sirupsen/logrus
+  - go get github.com/x-cray/logrus-prefixed-formatter
+  - go get github.com/google/uuid
+  - go get github.com/gorilla/websocket
+  - go get github.com/graphql-go/graphql