Refactored transform() with new method processStrategy().
- Fixed some content getting unimported
- Modified logging output with better formatting and status code
- Content still set to "Removed from draft"..
Works: SiteTree A-OK, but:

Nothing imported:

overwrite: OK
duplicate: OK
skip: OK

One set imported

overwrite: FAIL (draft records created, existing objects not updated)
duplicate: OK
skip: OK