Upgrade to spring 5.1.15 and spring-batch 4.1.4 on Travis CI
Upgrade to spring 5.1.15 and spring-batch 4.1.4 on Travis CI

mosoft521/spring,mybatis/spring,pboonphong/mybatis-spring,hazendaz/spring,mosoft521/spring,kazuki43zoo/spring,mybatis/spring,hazendaz/spring,kazuki43zoo/spring,pboonphong/mybatis-spring