[Testing] Comment out assertion for division by zero that crashes test suite on C back-end.
[Testing] Remove forward references from test suites to adjust to changes in Testworks commit a88a14efb9ba9696d9936cfbbd6649c495eeb45a
[doc] Add a release note about Testworks compiler warnings and forward refs.
[Testing] Output library-spec after module-specs in test-suite report.
[doc] Remove some depth from the release notes toc tree.
Merge pull request #639 from cgay/bottom-up-test-suites

Bottom up test suites