Good question. This page answers it better that I could, as I don't speak old English or Scandinavian languages...
Ooops, sorry dj, didn't see your answers.
By the by, just for clarification, prorogation take place at the end of any legislative session. Traditionally, all bills and or government work should be finished by then. Harper though, has abused this process by calling for it twice during the middle of the session, putting anything tabled back to square one. In essence, doubling the amount of work or in some cases completely dismissing and forgetting important bills while in the midst of them being decided upon.
I just found out today that Gilles Duceppe used to be an actor. Did not know this. I must say, if he was running in this province I would probably vote for the man, he has great stage presence and timing. I loved how he ripped into Harper over the Coalition letter. Sadly though, he wants to tear my country apart. So, I'm stuck with three choices, none of which I like.