update travis.ci config file.

Author: daimajia

.travis.yml

@@ -1,25 +1,12 @@
 language: android
 android:
   components:
-    # Uncomment the lines below if you want to
-    # use the latest revision of Android SDK Tools
-    # - platform-tools
-    # - tools
-
-    # The BuildTools version used by your project
-    - build-tools-22.0.1
-
-    # The SDK version used to compile your project
-    - android-22
-
-    # Additional components
-    - extra-google-google_play_services
-    - extra-google-m2repository
-    - extra-android-m2repository
-    - addon-google_apis-google-19
-
-    # Specify at least one system image,
-    # if you need to run emulator(s) during your tests
-    - sys-img-armeabi-v7a-android-19
-    - sys-img-x86-android-17
-script: ./gradlew assembleDebug
+  - tools
+  - platform-tools
+  - build-tools-25.0.2
+  - android-25
+  - extra-android-support
+  - extra
+  - extra-android-m2repository
+script:
+  - ./gradlew assembleDebug