Update .travis.yml

specify branches again

.travis.yml

@@ -4,10 +4,6 @@ language: bash
 
 os:
   - linux
-branches:
-  only:
-    - master
-    - stable-esp-module
 
 before_install:
   - "/sbin/start-stop-daemon --start --quiet --pidfile /tmp/custom_xvfb_99.pid --make-pidfile --background --exec /usr/bin/Xvfb -- :99 -ac -screen 0 1280x1024x16"
@@ -33,6 +29,12 @@ script:
   - arduino --get-pref sketchbook.path
   - build_sketch esp8266/esp8266.ino
   
+branches:
+  only:
+    - master
+    - stable-esp-module
+    
+
 notifications:
   email:
     on_success: change