update .travis.yml to support 4.0 branch

Esse commit está contido em:
kinichiro
2016-12-12 20:48:05 +09:00
commit fd817e77bb
+6
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@@ -1,3 +1,9 @@
# whitelist
branches:
only:
- master
- 4.0
language: bash
dist: trusty
sudo: required