* stable-2.16:
CreateProject: Add @UsedAt annotation
ProjectConfig: Add @UsedAt annotation
Use bazelisk as first choice for api.sh
Change screen: Show abbreviated commit sha1 in patch set dropdown
ProjectConfig: Add method to read from repository
Remove buck related entries from .gitignore
Replace references to bazel-genfiles with bazel-bin
Set version to 2.14.21-SNAPSHOT
Change-Id: I45280689a579b0a411832410735ea82c545c8657