* [presubmit] Enforce language attribute in projectt.yaml to be always set.
* Update documentation, better presubmit check, new project template.
* add docstring to templates.py
* Add example values in the project.yaml template and remove python value for now
* Add "project: c++" to 256 projects
* format
* Add labels and selective_unpack sections to the presubmit check
* fix incorrect auto_ccs format in three projects
* fix nss emails after rebase
Maintainers who own these projects: If you don't want i386 fuzzing, feel free to disable.
I figured i386 fuzzing is generally desirable since it can find more bugs but most projects won't switch because of inertia.
Max Moroz