Using firestore as the cache instead of memcached

Giving up on the memcached thing, rather than raise the back end costs I'll just cache user info in the database with the rest of the application data. It's protected access, so it should be fine.

More fixes for the userinfo cache

memcache-6

More fixes for the userinfo cache

Fixing memcache key length bug

Shortening the keys used for memcached to allow it to work in

production.

Fixing memcached connection

memcache-4

Fixing the connection to memcached

Fixign docker build

With the addition of memcached, we need a few adjustments to the docker build and launch configuration.

Fixing compile errors

Compile errors from previous release fixed
Automated tests updated to use the new caching setup

Adding memcached-based caching

memcache-1

Memcached test implementation complete

Adding caching to help with auth0 rate limiting

Adding caching to help with auth0 rate limiting

Bugfixes for final release

Fixed a few issues found by Lesley during her finishing-up work

Post-final documentation fixes

Removes the /edits route (which duplicated /edits/all) and fixed the docs to include the new totalCount response element for paginated edit request API responses.