Now deleting folder during import process if allowed.
Changed HistoryItem.Size to long. And changed Sabnzbd status to enum.
Added IsReadOnly and Storage path to uTorrent implementation.
CompletedDownloadService can now also import individual files.
Disabled the NotInUseSpecification temporarily to allow importing seeding file on uTorrent.
Sabnzbd now ignores queue/history items that have the wrong category.
Remodelled UTorrent deserialization to include all known parameters. (And int64 for size)
Code cleanup:

* Added braces in if/else statements
* removed 'this.'
* removed not used properties
* removed unnecessary Json Property descriptors