Use JSON instead of putting inputs in the URL

[jkubNTIA]

We need to decide if we always want to use JSON for the URL or have some maximum number of inputs before we use JSON in the URL. For example, maybe if we have more than 1 or 2 input parameters we should use JSON instead of adding the inptus to the URL. We could also decide to just always user JSON even if we only have 1 or 2 inputs. Ranga & I it is important to cement the API and transfer spec as early as possible. Once we start automating our testing and federating with with other systems, it will become increasingly difficult if we change the API or the transfer spec.

[jkubNTIA]

I am going to change this before Raian and I do testing, since it affects the API interface for the user account code.

[jkubNTIA]

this is done for the account management URL's. I need to change this for user account URL's too.