Allow sorting of arrays of arbitrary objects about version_sorter

[mislav]

You could implement your own easily:

def sort_by(values, &block)
  values_map = {}
  values_to_sort = values.map do |val|
    transformed = block.call(val)
    values_map[transformed] = val
    transformed
  end
  VersionSorter.sort! values_to_sort
  values_to_sort.map { |val| values_map.fetch(v) }
end

# usage:
sorted_tags = sort_by(tags) { |t| t.name }

Hash lookup makes this a slightly more efficient implementation. But I agree, this feature being baked in could be useful for the library.