Better combat help + tweak to combat cleanup
Better combat help + tweak to combat cleanup

With the help of Cloud_Keeper and vincent_lg in chat, I made the combat help command work much better - it doesn't copy swaths of code from the original help command anymore, and instead simply calls the default help with super() when the conditions for combat help aren't met.

I also moved a line from combat cleanup to the turn handler script, since combat cleanup is called when a character is initialized in combat and could remove the needed reference to the turn handler on the room prematurely, resulting in various errors if more than one fighter joined a fight in progress.
jamesbeebop/evennia,feend78/evennia,feend78/evennia,jamesbeebop/evennia,feend78/evennia,jamesbeebop/evennia,feend78/evennia