Run Travis CI for v1, too

silvenon · silvenon · commit 64cc0c9d949f · 2018-06-17T12:38:08.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -11,3 +11,4 @@ cache:
 branches:
   only:
     - master
+    - v1-stable
