Removed the database stuff I worked on yesterday.
Simpler DocumentStore and Session stuff.
RegisteredDeviceModel.
Added database name to connection string.
Added more properties to model.
Saving model to database.
Renamed method.
Better handling of document store.
GetRegisteredDevice().
UpdateRegisteredDevice().
Added UpdatedAt property.
Updating UpdatedAT.
Clean up.
DeletedRegisteredDevice().
Null check.
DatetTimeOffset.
Extracted methods to RegisteredDeviceController.