Report Messages Change

Area spells like Flash, Earthquake, Qorbane, etc had an accidental
ability to instantly and completely report everyone in the room without
even casting - the attempted caster would receive a list of "Hey! You
almost hit <name>".

I created a new viReport variable that can be turned to FALSE to stop
those messages, and set it to FALSE for all relevant spells. They now
simply say there are no proper targets; they do not list every player in
range.

Furthermore, I put in a small function to prevent harmful area
enchantments from being cast in guildhalls.

Together, this eliminates all the text-based unintended 'tricks' that
are primarily used to guarantee the security of one's guildhall.