`loads` and `dumps` ignore `**kwargs`

[iurisilvio]

e.g.:

>>> import json
>>> json.dumps({'a':1}, indent=2)
'{\n  "a": 1\n}'
>>> import omnijson
>>> omnijson.dumps({'a':1}, indent=2)
'{"a": 1}'
>>>

[kennethreitz]

Hmmmmm