Update .travis.yml

Author: kbiakov

.travis.yml

@@ -30,6 +30,6 @@ before_script:
 
 script:
   - android list target
-  - android update sdk --no-ui --filter build-tools-24.0.0,android-24,extra-android-m2repository
+  - android update sdk --no-ui --filter build-tools-24.0.2,android-24,extra-android-m2repository
   - ./gradlew build connectedCheck
   - ./gradlew connectedAndroidTest