[reSIProcate] Unsetting outbound proxy

[Dmitry Semyonov]

Hi.

Quoting Profile.hxx: "If you call an unsetXXXX method on an object 
with a NULL BaseProfile it will have no effect."

Therefore, if I use just MasterProfile I can't unset outbound proxy if 
it was set once.

I think unsetting should be allowed regardless of BaseProfile value 
for all Profile members that are in 'unset' state initially.

-- 
...Bye..Dmitry.