Start runs the given Actor in its own goroutine.

Cleaner is an actor that cleans up unknown objects on the target side (i.e.

FileInfoForCleaner contains information about a transferred file for the Cleaner actor.

Report is an actor that counts scraped directories and transferred files.

ReportEvent counts either a directory that was scraped, or a file that was found (and maybe transferred).

Scraper is an actor that reads directory listings on the source side to enumerate all files that need to be transferred.

Stats contains the report statistics.

Transferor is an actor that transfers files from a Source to a target SwiftLocation.

Actor is something that can be run in its own goroutine.