Sample for Map<String, String> to OptionSet.
Handle multivalued options.
Add Hamcrest for tests.
Test passes for recognized options.
Simplify passing of defined specs.
Small format changes.
Merge branch 'feature/OptionSetAsProperties' into develop
Remove "mapWith" in favor of "asMap".
Undo minor formatting changes.
Merge pull request #42 from binkley/feature/OptionSetAsMap

Feature/option set as map