/migrations/
../
2018-01-14-171611_create_tables
2018-02-17-205753_create_collections_and_orgs
2018-04-27-155151_create_users_ciphers
2018-05-08-161616_create_collection_cipher_map
2018-05-25-232323_update_attachments_reference
2018-06-01-112529_update_devices_twofactor_remember
2018-07-11-181453_create_u2f_twofactor