added comments to JPAManager.Builder class method
added comments to JPAManager.Builder class method
added comments to JPAManager.Builder class method
added comments to JPAManager.Builder class method
added comments to JPAManager.Builder class method
added comments to JPAManager.Builder class method
improved comment on MetaCreator.Builder class method
added comments to JPAManager.Builder class method
added comments to JPAManager.Builder class method
improved comments to JPAManager class method