* [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
* [libpsl] Add autoconf-archive to fix libidn2 build
* [libpsl] Speed up build by using ./configure caches
* [libpsl] Prevent cloning gnulib multiple times
Libpsl can either be built with libicu, libidn2, libidn or with
basic internal code. Each built uses different code paths via
conditional compilation. To cover all these paths during fuzzing
and regression testing, new fuzzer targets are added by this commit.
jonathanmetzman