By: Addison Wylie At this year’s Hot Docs Canadian International Documentary Festival, Monty Python: The Meaning of Life captured the British comedians rehearsing for their final hurrah as they recounted cherished memories.  Katja von Garnier’s concert doc Forever and a Day about German rock band Scorpions  treads similar ground, but also made me feel the exact way the Pythons did – indifferent but not enough for me to completely disregard it. Forever and a Day is…