square/retrofit — pull request #390 by felixgborrego (2014-01-29 15:43:17+00:00)
Title: Generalize multiple field values to use Iterable.

This change allows retrofit to transform methods like:
@POST
@FormUrlEncoded
void sendArray(@Field("order") List array )
into:
order=xxx&order=xxx

It's working for PHP arrays too, so we can use:
@Field("order[]") List array, to generate the expected php array in the http request: order[]=xxx&order[]=xxx

It add to @Field parameters a similar behaviour to we already have for query parameters (https://github.com/square/retrofit/pull/380)