Update travis continuos integration.

android10 · android10 · commit 87df25120c18 · 2015-11-17T23:53:56.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -3,8 +3,8 @@ jdk: oraclejdk8
 
 android:
   components:
-    - build-tools-21.1.2
-    - android-19
+    - build-tools-23.0.1
+    - android-21
 
 script:
   ./gradlew build
