Money validator test
Different activemodel & activesupport versions
lock minitest version
Merge pull request #35 from kaize/feature/test-3-and-4-active-support

Test against 3 and 4 AS
Remove inn validator
Merge pull request #36 from kaize/remove_inn_validator

Remove inn validator
Merge pull request #32 from asiniy/money_validator_test

Money validator test