Merge pull request #1 from mrsellars/fix_tests

Fix unit tests and change whitespace check.
Use skos names in UI instead of strange to_relation_name based label setters
Merge branch 'rdfapi' of github.com:wvk/iqvoc into rdfapi
Refactor: concept.concept_relations_by_id_and_rank => concept.relations.by_id_and_rank
Fix client augmentation test and set database cleaner strategy to truncation.
Merge branch 'rdfapi' of https://github.com/wvk/iqvoc into fix_tests
More concept relation refactorings (remove quirky caching and stuff)
Merge branch 'rdfapi' of https://github.com/wvk/iqvoc into fix_tests