Update Travis CI support

sudo: false

git:

  submodules: false

before_install:

  - git submodule update --init --recursive

before_script:

  - echo sdk.dir $ANDROID_HOME > local.properties

script:

  - export JAVA_OPTS="-XX:MaxPermSize=1024m -XX:+CMSClassUnloadingEnabled -XX:+HeapDumpOnOutOfMemoryError -Xmx2048m"

  - export TERM=dumb

  - echo sdk.dir $ANDROID_HOME > local.properties

  - ./gradlew assembleDebug -x lint

  - export JAVA_OPTS="-XX:MaxPermSize=1024m -XX:+CMSClassUnloadingEnabled -XX:+HeapDumpOnOutOfMemoryError -Xmx2048m"

  - ./gradlew build

android:

  components:

  - extra-android-m2repository

  - build-tools-23.0.1

  - 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/