Add .travis
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..2456c8b
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,7 @@
+language: go
+sudo: false
+go:
+    - 1.3.3
+    - 1.4.2
+    - 1.5.3
+    - tip