Strange bug with LONG

[byaka]

Finded some really strange bug
ujson version 1.35

> ujson.dumps({'params': [1, 18446744073709551616L], 'method': ''})
'{"params":[1,],"method":""}'

> ujson.dumps({'params': [1, 18446744073709551616L], 'test': ''})
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
OverflowError: long too big to convert

as you can see in first example encoder silently ignore LONG and return incorrect data, but in second example it raise error

This is repost from closed #99

[Jahaja]

Strange one indeed. This is fixed in 409c6d4. Thanks!