In I2aa729d1b4278743a5e99b41178dc2d11b3e1348 the projects.yaml file
of the governance repo was reorganized to support a new
"deliverables" concept which provides a subgrouping of related repos
under each project team. This requires adjustments in the scripts
consuming that file, specifically email_stats.py and
who-approves.py.
Change-Id: I041a62fd86a776279536f003724cb8c289922080