Add simulator into release package, and explicitly add java/scala api (#3144)
Add simulator into release package, and explicitly add java/scala api (#3144)


huijunwu/heron,huijunwu/heron,mycFelix/heron,twitter/heron,nlu90/heron,twitter/heron,nlu90/heron,huijunwu/heron,nlu90/heron,mycFelix/heron,twitter/heron,mycFelix/heron,huijunwu/heron,huijunwu/heron,twitter/heron,mycFelix/heron,mycFelix/heron,nlu90/heron,twitter/heron,twitter/heron,twitter/heron,nlu90/heron,nlu90/heron,mycFelix/heron,nlu90/heron,nlu90/heron,mycFelix/heron,mycFelix/heron,huijunwu/heron,nlu90/heron,twitter/heron,huijunwu/heron,mycFelix/heron,huijunwu/heron