Add metadata for state backups.
Remove superfluous code and track backup origins.
Add an extra backup timestamp field and rename a file.
Fix docstrings.
errors.Errorf -> errors.Annotate
Fix a copy-and-paste docstring issue.
Test for the actual env ID rather than a bad regex.
archived -> stored
Clean up the backups package.
Address review comments from axw.
Rename backup to backups.
Clean up DBConnInfo a bit.
Add a test for the files that will be backed up.
Remove the old HTTP-based API server endpoint for backups.
Also remove BackupResponse from state/api/params.
Move runCommand() to core utils.
Add a backups config abstraction.
Add a backups abstraction.
Add the functionality for creating a backup.
Add Create() to the backups abstraction.