[wsrp] Issue #38: Differing signature styles

[Rich Thompson <richt2@us.ibm.com>]

Issue # 38
Spec section: 
SubCommittee: Interfaces
Owner: Andre
Description:
copyPortlets uses a different
style in its signature (see p20, section 4.4 in the spec). All the other
operations use the type being passed while the copyPortlets signature uses
the parameter names, presumably to help distinguish between the pairs of
RegistrationContexts and UserContexts.