* [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
* Add a libgit2 fuzzer for the `git fetch` client
* Use a fresh remote each time
* Build fewer things, use fewer deps
* no ssh, either
* Add a corpus with one file.
Slightly tweaked network dump of a `git clone` on a tiny repo.
* auto_ccs is a list
* Rename the fuzzer
* only email in project.yaml
* Use `master`
I had left in a `-b oss-fuzz` from testing off my fork
Max Moroz