Registration request for MIME media type tag 3gpp-ims+xml

[Bjoern Hoehrmann]

* John-Luc Bakker wrote:
>I copied the original text following the "optional parameters"
>heading and made some significant reductions and clarifications:
>
>[start]
>Optional parameters: 
>"charset"   the parameter has identical semantics to the charset
>parameter of the "application/xml" media type as specified in
>RFC 3023.
>
>"sv" or "schemaversion" the parameter's value indicates versions
>corresponding to 3GPP IM CN Subsystem XML schema documents as
>specified in 3GPP TS 24.228.
>[end]
>
>Would such be a more suitable text for inclusion in the IANA
>registry for Application Media Types?

Yes, I think this is much better, thanks!