pin Travis-CI image

ocefpaf · ocefpaf · commit 16472a877a4c · 2017-08-09T11:08:08.000-03:00
diff --git a/.travis.yml b/.travis.yml
@@ -2,6 +2,8 @@ language: python
 
 sudo: false
 
+dist: precise
+
 services:
   - mysql
   - postgresql
