update CI for NS5+

PeterStaev · web-flow · commit adb2db7bec37 · 2018-11-04T14:59:54.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -6,7 +6,7 @@ android:
     - platform-tools
     - build-tools-28.0.3
     - android-23
-    - android-25
+    - android-28
     - extra-android-m2repository
 
 before_cache:
