begin data anonymization tool: full names are generated
rake db:anonymize and rake db:anonymize:clients are tasks.
rake is preferred anonymization tool. Standalone script is gone.
Client can anonymize itself; Client.current_alias is anonymizable
Client.oriented_on is anonymizable
Client.phone_number, Client.birthday are anonymizable
Client.oriented_on correctly grabs performed_on of oldest PointsEntry
Client.notes is anonymized