Improve message for glossary error
Fix problem where tests crash completely on core branch
Minimize number of tests that fail on core branch.
Minor changes to make error messages consistent, and possibly less crashy. Still need unit tests to trigger this code.
Merge pull request #66 from r-gaia-cs/improve-glossary-error-message

Improve message for glossary error
Merge pull request #61 from abought/test_rework

Test rework
Add Unit Test target to Makefile