[whatwg] Schemes for registerProtocolHandler

[Simon Pieters]

While looking at our testsuite for register*Handler I noticed that we seem  
to support some schemes that are not in the spec:

im ("works like xmpp" says wikipedia)
ircs (secure equivalent of irc)
wtai (apparently prompts the user what to do with the phone number  
provided)

They seem to be in line with those currently in the list. Should they be  
added to the spec?

BTW, the spec's list is not in alphabetical order.

-- 
Simon Pieters
Opera Software