Hibernate 5.1.0 正式版发布，新版本带来了一些新特性及功能增强
Entity joins (or ad hoc joins)
load-by-multiple-id API
CDI 集成的改进
@Embeddables and all null column values
Envers audit queries can now refer to to-one associtions
完整记录请看:https://hibernate.atlassian.net/secure/ReleaseNote.jspa?projectId=10031&version=19355