Limit the branches that build on travis (dotnet#1527)

JunTaoLuo · danroth27 · commit 671dd56cd88b · 2016-06-27T06:28:58.000-07:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,4 +1,10 @@
 sudo: false
+branches:
+  only:
+    - master
+    - release
+    - dev
+    - /^(.*\/)?ci-.*$/
 language: python
 python:
   - "3.4"
