build dir fix

Author: jmisur

.travis.yml

@@ -23,6 +23,7 @@ script:
 - test "$TRAVIS_JDK_VERSION" = "oraclejdk8" && cd java-webmvc && ./gradlew check && cd .. || (exit 0)
 - test "$TRAVIS_JDK_VERSION" = "oraclejdk8" && cd kotlin-webmvc && ./gradlew check && cd .. || (exit 0)
 after_success:
+- cd $TRAVIS_BUILD_DIR
 - test "$TRAVIS_BRANCH" = "master"
   && test "$TRAVIS_PULL_REQUEST" = "false"
   && test "$TRAVIS_JDK_VERSION" = "oraclejdk8"