language: go
env:
    - CGO_ENABLED=0
go:
    - 1.7
    - 1.8
sudo: false
os:
    - linux
    - osx
script:
    make travis

language: go
env:
    - CGO_ENABLED=0
go:
    - 1.7
    - 1.8
    - 1.9
sudo: false
os:
    - linux
    - osx
script:
    make travis

Add go 1.9 to Travis build matrix.
Add go 1.9 to Travis build matrix.
