Starting over from scratch (more or less)
Set A_Province vars to nil to suppress warnings
Added test_provinces_have_a_name
First province is nil (Province 0)
Failure message includes province id
Added @provinces accessor
Added test_provinces_have_an_owner
Added @owner accessor
Rewrote failure message
Renamed @province_index => @province_map
It's okay for provs to have no owner