Removed DiskResourceServiceFacadeImpl::toStringIdList method.

Refactored to use DiskResourceUtil::asStringIdList method instead.
CORE-3733 CORE-4171 Re-added partial restore warning.

Added AutoBean interfaces for "restore" endpoint requests and responses.
Added a DiskResourceRestoreCallback for restore requests.
Fix for DiskResourceViewImpl::removeDiskResources.

De-select everything first, so the remove calls to the ListStore don't trigger extra SelectionChanged events, which can cause "stat" endpoint calls to nonexistent items.