* [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
* [libspng] enable i386 builds
* use pip to install newer version of meson
* fix build
* fix build
* fix meson install process
* install zlib:i386
* fix 32-bit build
* use cross-file for i386 build
* switch to cmake
* cd back to top-level after build
* dummy commit
* switch to meson
* fix up paths in crossfile
* dummy commit
* add -m32 LDFLAGS for i386 build
* remove LDFLAGS, force repo update
* print contents of crossfile
* replace cflags/ldflags in crossfile with env vars
Meson ignores environment variables for cross-builds
* dummy commit
* remove 32-bit build code
* remove i386 architecture
* update files
* Bring back zlib1g-dev as it is needed
Oliver Chang