Include qtSwordPluginWorker in new jobs process

- Add ability if qtSwordPlugin is enabled
- Use new job classes

Refs #7641
Fixes in DIP upload process, refs #7641

- Do not save target IO at the end, it was creating nested set problems,
  but update it in the ES index
- Register namespaces and use Xpath queries to allow namespaced and not
  namespaced METS versions
Change exception message