added test Model/Enumeration.
added testGetValues.
Merge branch 'hackathon' of github.com:yandod/candycane into hackathon
fixed Fixture/EnumerationFixture
added testDefaultValue. fixed testGetValues.
added testObjectsCount and testInUse
completed test case of Model/Enumeration.
Merge pull request #165 from takahashiyuya/hackathon

added Enumeration test.