Units parameters should be more forgiving and allow a string

[triemstr]

Hi,

I spent quite a bit of time trying to pass in:

distance_units = preferences.units  # Should be 'mi' or 'km'
Location.near(origin, 500, :units => distance_units)

only to find out I had to add a 'to_sym':

Location.near(origin, 500, :units => distance_units.to_sym)

It would be nice if :units was more forgiving and could take a string.

[alexreisner]

Fixed by #411.

[triemstr]

Thank you good sir.