debug flag and kill rares

Added debug flag to hide some text (more to go there)
Added kill_rares option (addon dialog and cmd_line) to allow us to kill rares rather than stop
Modified rotation for Anubisath Idol (basic start - not super smart)
Modified MyPetBattle.buff to return time remaining on the buff - allows us to check for things like Apocalypse where we might want to move pets out the way. 
That's going to require smarter rotation/pet family management but it's a start.