Merge pull request #221 from Zariel/dont-test-against-tip

Dont test against go tip in travis

.travis.yml

@@ -3,7 +3,6 @@ language: go
 go:
   - 1.2
   - 1.3
-  - tip
 
 before_script:
   - go get code.google.com/p/go.tools/cmd/vet