Updated mruby to latest master
Renamed map_with_xy|z! to map_with_xy|z
Tilemap#render has been changed to render(x, y, z) while a view attribute has been added.
Vector(2|3) update

renamed obj_to_vec(2|3)a to obj_to_vec(2|3)_a
obj_to_vec(2|3)_a now supports Arrays
Added #set
Added ::zero
Added #xy
Added #xyz
Rectangle shorthand methods w, h, xy, xyz, wh, whd

xyz, and whd have been added to be compatible with Cuboid and Vector3
Cache name.inspect
Forgot to add cuboid to the load.rb