* stable-2.15:
Use bazelisk as first choice for api.sh
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: Ia6d9fe13f43e85514b6c5dce8cee1670d5dd8f12