Management of current assistant via !assist and !stop

Remove hacky our_nick global, use the relevant MUC's nick property, or question_name as appropriate.

Add set_assistant and show_message functions

Declare question_muc/team_muc as global singletons

Add new styles to supportchat.css

Suppress enter key press so it doesn't reach the textbox

Bind enter to the send button in the chat UI

(0) -30 -10 -7 tip

mercurial