Fix migrations bug
The business logic should do the flush
Add replicas model
Add specific versions to setup.py
Add replicas
Improve service configuration
Fix test suite
Remove old replica catalog
Add api helper
Add catalog management
Add authentication test
Update catalogs cli to use flags
Add updated timestamp to catalogs
Use UTC for timestamps
Change catalog URLs and update catalog tests
Update users test type
Use username instead of user_id for file paths
Add helper for userdata dir
Add user relationship to catalogs, add catalog dir helpers
Add ensemble API