[util] Add intersect(Circle, Line);
[geo] New old camera constraint system compiles (and doesn't do anything with no Attentions)
[ent geo] Start trying to use new old camera constraint system
[geo] Fix one bug with camera contraint system
[util] Fix an error in contains(Rect, Vec)
[geo] Camera constraint system nearly works
[util] Forgot to uninvert bounds(Circle)
[geo] New old camera constraint system now seems to have no visible bugs!
[core shell] Handle exceptions during menu clicks
[core] Add try command
[shell] Console can now receive and show notifications while inactive.
[world] Add a third test room
[shell] Add new room... menu item
[core shell] Better way of creating new files.
[geo shell] Try implementing graphical room parameter editing
[shell] Draw lines indicating rooms' neighbors
[ent shell] Make Player Observe its Controllable's Room.
[geo] Fix errors in Room::set_pt
[shell] Add an always-on DEBUG log tag
[snd] atexit(SDL_Quit)