add android-studio package for android sdk

Signed-off-by: Adam Ratzman <[email protected]>

Author: adamint

.travis.yml

@@ -7,4 +7,8 @@ before_cache:
 cache:
   directories:
     - $HOME/.gradle/caches/
-    - $HOME/.gradle/wrapper/
+    - $HOME/.gradle/wrapper/
+addons:
+  homebrew:
+    packages:
+      - android-studio