Addressed a couple more minor, edge case issues related to unmounting a source snapshot at the end of the backup task.

Fixed an error that occurred when selecting a folder on a remote Macintosh as a source or destination if that folder's name started with a space character.

Fixed an issue that caused support request submissions to fail (i.e. via the "Ask a question about CCC" menu item in CCC's Help menu).

Fixed a date math error that occurred when trying to adjust the initial fire date after a time zone change occurred.

Fixed a drawing anomaly that occurred when selecting multiple rows in the Snapshots or Related Tasks tables.