Adding MadsVariant class, updating the Title module and spec. DHH-164
Updating MadsTitle module, DamsObject fixture, and specs to support hasVariant. DHH-154
Updating the DamsObject form to support hasVariant. DHH-164
Adding more hasVariant predicates. Updating model, fixtures and rspec tests. DHH-164
Merge branch 'feature/hasVariant' of https://github.com/ucsdlib/damspas into develop