Stop requesting MWDL records when TOTALHITS is met

-Also lowered bulksize to 100 in mwdl.pjs
Update profiles to clean values prior to enriching but after shred.

- Also added sourceResource/date to the default props in the
 clean_value module.
Update qa_reports to grab collection title, not name
Small fix in dict_differ for nicer diff.
Added replacing '- -' with '--' for subject.
Added cleanup_value module to digital-commonwealth profile.
Merge branch 'dc_fixes' of github.com:dpla/ingestion into dc_fixes