Geohash encoding and decoding for Elixir.

iex> Geohax.encode(-132.83, -38.1033, 6)
"311x1r"
iex> Geohax.decode("311x1r")
{-132.83, -38.1033}

Note that the format for coordinates is {longitude, latitude}.

Add the :geohax dependency to your mix.exs file:

defp deps do
  [{:geohax, ">= 0.0.0"}]
end

Then, run mix deps.get to fetch the new dependency.