Added .travis.yml

.travis.yml

@@ -0,0 +1,18 @@
+language: go
+
+os:
+  - linux
+  - osx
+
+go:
+  - 1.7.x
+  - 1.8.x
+  - 1.9.x
+  - 1.10.x
+  - 1.11.x
+  - tip
+
+notifications:
+  email:
+    on_success: change
+    on_failure: always