* Add a project sync script
* Give an error if the configuration references a group that doesn't exist
* Fix hard_assert_test reference
* Run sync_project to sort all project elements
* Factor out a whitespace checking script
* Factor out a copyright checking script
* Rewrite lint.sh to honor revision ranges
* Only restyle files that are part of the PR
* Run C++ lint before builds to fail faster
* Git grep doesn't operate on revision ranges
* style.sh accepts clang-format 6 or 7
Gil