Converting JSON objects to string is fixed
Merge pull request #20 from bkase/obj-to-string-fix

Converting JSON objects to string is fixed
Use BooleanType instead of LogicValue
Merge pull request #33 from venables/beta5-boolean-type

Use BooleanType instead of LogicValue for Beta 5
refactor!
1. Change JSONValue to JSON
2. Delete the part  of error
3. change enum' type to ScalarNumber, ScalarString, Sequence, Mapping
4. implement Comparable
5. update test