time format standardization

[Alexandru Damian]

Hi,

What should the JSON serialization format for DateTime objects ? I am a bit confused,

since the DateTimeField representation uses ISO-8601, and the JSONEncoder uses ECMA-262,

which is slightly different (microseconds are truncated to milliseconds).

I would have expected that the DateTimeField representation would pass down a `datetime` object,

to be encoded by an encoder, and the JSONEncoder would use ECMA-262, not just passing through

a ISO string representation. This is anyhow the documented behaviour 

http://www.django-rest-framework.org/api-guide/fields/.

Is this a bug or I am missing something ?

Cheers,

Alex