ci: Also build 4.x

HazAT · HazAT · commit 9817fce97798 · 2019-03-22T13:13:52.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -4,6 +4,7 @@ git:
 branches:
   only:
     - master
+    - 4.x
     - /^release\/.+$/
 
 install: true
