Refactor Mapbox result & expand test coverage

Add seed parameter to Geocoder::Calculations.random_point_near

Update hash syntax

Move away from generating a `geocoder.rb` initializer with old school ruby hash syntax in favor of the new/current style.

Replace timeout exception so its compatible with Ruby 1.9.3 too.

Test that stubbing with an invaid address works

Add county accessor for map quest results

Pass in dir variable when retreiving data files in Maxmind insert task

Fix typo in the readme

Add changes in conditions of use yandex geocoding API to the README

See [this post](http://clubs.ya.ru/mapsapi/replies.xml?item_no=58741)
and also [documentation](https://tech.yandex.ru/maps/doc/geocoder/desc/concepts/input_params-docpage/) for the details

Sorry for unable to provide link to the english version.
Seems that changes are not reflected in the [english documentation](https://tech.yandex.com/maps/doc/geocoder/desc/concepts/input_params-docpage/) yet

Emphasize form of coordinates in README

Looking through the README, the only mention of the format of `coordinates` was under the MongoDB section which is all the way at the bottom of the file.

Ruby warnings

Minor typo fix in the README

Test against different versions of rails