First attempt at creating the arena kind for #150, no testing yet
Tweaks and refactoring for #150, still no testing
fixed some bugs in the last commit for #150
Added a waiting area for Arena of the Gods (#150)
fixed a bug in the must be religious to fight gods rule (#150)
Mazing an opponent in Arena of the Fallen appears to work correctly (#150)
Arena of the Gods seems to be working with #150 now too
created a "challenging it in" action to enable rules to stop arena battles from happening (#150 and #166)
added a rule to stop mazing in Arena of the Gods - fixed #166