Keep-alive on invisible user switchboards

[dx]

This affects group chat and chats with invisible users:

• Group chats: they have to be alive until user leaves them (closing the conversation) i have fixed a bug with that, so this isn't needed
• Invisible users: trying to open a switchboard with an invisible user results in a 217 error, so keep them alive.

Kopete (the most annoying msn client) sends keep-alive in *every* connection. And it works, dammit. Please implement this only in that special cases.

[dx]

"motivation"

[dx]

bugfix in description (?)

[dx]

(group chat not needed)

[dx (can't log in)]

/eval import gobject
def SendKeep(conversation):
    conversation.switchboard.sendMessage('
', '', 'text/x-keep-alive', 'A')
    return True

gobject.timeout_add(8000, SendKeep, conversation)