Add Travis CI support

.travis.yml

@@ -0,0 +1,21 @@
+language: android
+sudo: false
+before_script:
+  - echo sdk.dir $ANDROID_HOME > local.properties
+script:
+  - export TERM=dumb
+  - export JAVA_OPTS="-XX:MaxPermSize=1024m -XX:+CMSClassUnloadingEnabled -XX:+HeapDumpOnOutOfMemoryError -Xmx2048m"
+  - ./gradlew build
+android:
+  components:
+    - platform-tools
+    - tools
+    - build-tools-23.0.2
+    - android-23
+    - extra-android-m2repository
+before_cache:
+  - rm -f $HOME/.gradle/caches/modules-2/modules-2.lock
+cache:
+  directories:
+    - $HOME/.gradle/caches/
+    - $HOME/.gradle/wrapper/