Merge pull request #33 from aronr/cspace-5301

CSPACE-5301: refName parsing for authorities and authority items now uses tokenization code exclusively, rather than tokenization code in some code path(s) and regex code in other(s). The tokenization code, among its many virtues, handles parens in the displayName parts of refNames with aplomb. After making this change, all services tests (including refName-specific parsing tests in the common-api module) pass. As well, it is now possible to save authority item records with the addition of a broader or narrower term, whose displayname contains parens.