Updated change log and version number for release r70.
Merge remote-tracking branch 'origin/release/r70' into release/r70

Conflicts:
	CHANGELOG
[Addresses #58557702]ReviewConfirmation: contact_suggestions rename

What: contact_suggestion_topics didn't get changed to contact_suggestions.
Corrected for consistency and because the API is expecting the correct
name.
Merge branch 'release/r70' into develop

* release/r70:
  [Addresses #58557702]ReviewConfirmation: contact_suggestions rename
  Updated change log and version number for release r70.