Unset JAVA_OPTIONS in travis build (#1048)
Unset JAVA_OPTIONS in travis build (#1048)

See travis-ci/travis-ci/issues/8408
kardapoltsev/sbt-native-packager,sbt/sbt-native-packager,kardapoltsev/sbt-native-packager,sbt/sbt-native-packager,fsat/sbt-native-packager,sbt/sbt-native-packager,fsat/sbt-native-packager,fsat/sbt-native-packager,Sciss/sbt-native-packager,fsat/sbt-native-packager,Sciss/sbt-native-packager,sbt/sbt-native-packager,kardapoltsev/sbt-native-packager,kardapoltsev/sbt-native-packager,Sciss/sbt-native-packager,fsat/sbt-native-packager,kardapoltsev/sbt-native-packager,sbt/sbt-native-packager,sbt/sbt-native-packager,Sciss/sbt-native-packager,Sciss/sbt-native-packager,Sciss/sbt-native-packager,kardapoltsev/sbt-native-packager,kardapoltsev/sbt-native-packager,Sciss/sbt-native-packager,fsat/sbt-native-packager