Use latest minor version.

brocaar · brocaar · commit de8d0f558bed · 2016-12-21T19:05:22.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,7 +1,7 @@
 language: go
 sudo: required
 go:
-  - 1.7
+  - 1.7.x
 before_install:
   - sudo apt-get -qq update
 
