We're planning to change this from a warning to an error and need to
clean the codebase up before we do so.
In all of these cases the shadowing was known about and was not
causing unexpected behaviour, so the refactor consists entirely of
renaming, rather than refactoring/bug fixes.
- because of how the npm scripts were set up, we were running the full
Admin integration tests during the unit tests phase of CI
- this commit renames the majority of `test` to `test:unit` in the
package.json files, and aliases `test` to `test:unit`
- special packages like Admin have no-op'd `test:unit` scripts so we
don't end up running its tests
refs 8255bfdfda
- the original project had a commit which fixes a specific test for
missing host headers
- funnily enough, this was our only missing coverage on this package, so
we achieve 100% with this
- we shouldn't need individual LICENSE files because these packages
won't be published, so the top-level one applies
- also cleaned up README files to remove mentions of Lerna monorepos and
install instructions
