Fix review issues
Merge pull request #23 from aodn/use-spring-for-config

Merge in IMOS hierarchical facets changes and update to use spring dependency injection
Add BroaderTermUri classifier and tests.  Refactor existing BroaderTerm classifier and tests to share common code and simplify test data setup
Add term uri translator so that labels for requested language can be returned
Add classify from preferred label option and use that for integration testing