CI: use Maven batch mode to limit output

.travis.yml

@@ -27,10 +27,10 @@ before_install:
install: true

script: 
  - mvn clean package
  - mvn -B clean package

# deploy on success, but only if we are on master
after_success:
    - test $TRAVIS_PULL_REQUEST == "false" && test $TRAVIS_BRANCH == "master" && mvn deploy --settings settings.xml
    - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then mvn jacoco:report; fi
    - test $TRAVIS_PULL_REQUEST == "false" && test $TRAVIS_BRANCH == "master" && mvn -B deploy --settings settings.xml
    - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then mvn -B jacoco:report; fi
    - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then java -jar ~/codacy-coverage-reporter.jar report -l Kotlin -r target/site/jacoco/jacoco.xml; fi

appveyor.yml

@@ -17,9 +17,9 @@ install:
  - cmd: mvn --version
  - cmd: java -version
build_script:
  - mvn initialize
  - mvn -B initialize
  - mvn clean package -B -Dmaven.test.skip=true
test_script:
  - mvn verify
  - mvn -B verify
cache:
  - C:\maven