
* stable-2.15: ChangeApi: Add default implementation of setPrivate with null message ChangeApi: Annotate nullable message parameters as @Nullable ProjectApi: Add methods to get/set project's HEAD CommitApi: Add method to get "included in" information Upgrade elasticsearch-rest-client to 6.5.4 Change-Id: I25b8ad37fbca65235d9139d38d6d7bcdd0ff6e11