fit travis

.travis.yml

@@ -9,11 +9,10 @@ android:
     # Uncomment the lines below if you want to
     # use the latest revision of Android SDK Tools
     - tools
+    - tools
     - platform-tools
-
     # The BuildTools version used by your project
     - build-tools-25.0.3
-
     # The SDK version used to compile your project
     - android-25