Corrected erroneous test failures in Cloudsearch post-move to SigV4.
Finalized the release notes.

Mynd you, møøse bites Kan be pretty nasti...
Bumping version to v2.13.2
Merge branch 'release-v2.13.2' into develop

* release-v2.13.2:
  Bumping version to v2.13.2