Should show more info when buddy rejects add requests

[V S Rawat]

I had sent an add request to someone, and he rejected it. Pidgin just 
showed the first part of id of the buddy, and I have to search through 
all my several accounts/ different protocols to find even the full id 
and my account through which that add request was sent.

When buddy rejects our addition requests, it should at least show the 
protocol (Yahoo, Gtalk, etc.) and even our own email id of the account 
through which that request was sent. That will be helpful.

Thanks.
--
Rawat