> Hashes are by definition unordered. If you think you need an ordered hash,
> then you probably don't understand hashes...
Ruby 1.9 onwards saves the insertion order of hashes. In fact in Ruby 2.1 - a
hash of under 6 elements is stored as an array ;)
2.1.0 :001 > hsh = {'a' => 1, 'b' => 2, 'c' => 3}
=> {"a"=>1, "b"=>2, "c"=>3}
1.8.7-p374 :001 > hsh = {'a' => 1, 'b' => 2, 'c' => 3}
=> {"c"=>3, "b"=>2, "a"=>1}
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