* Add support for DB-IP.com geocoding service

* Added support for https with paid accounts

* Use `use_https` to distinguish between paid/unpaid API usage

* Clean rubocop warnings

* Update LocationIQ geocoding provider with limits and handle errors

* Correct syntax errors

* Update over limit fixture

* Set HTTPS as the assertion for the URL

* Add missing fixtures for unit tests

* Correct the mistakes in doc

* Let users decide SSL usage

* Revert incorrectly asserted URL without https

* Remove use_ssl from lookup subclass

* Update the assertion of the URL to HTTP and not HTTPS

* Added support for AMap, aka AutoNavi Map, 高德地图

* Try to include amap error info if failed

* Get correct result from amap response

* Fix result error in amap return

* Refactor codes for AMap handling

* Refactor codes for amap result handling

* Refactor amap handling codes

* Fixed coordinates handling error

* Added tests

* Fixded amap result handling and tests

* Lock webmock on 2.3.2 for ruby 1.9.3 support

Update smarty streets results coordinates method to return nil when both latitude and longitude do not exist

In the sea for example
[Fix #1131]

add new lookup to lookup.rb

add new lookup file ban_data_gouv_fr.rb

add new results file ban_data_gouv_fr.rb

update README with new lookup

create fixtures to test  new lookup

create unit test file for new lookup

update test helper default fixture for new lookup

remove invalid multibyte char (US-ASCII) 'ç' from lookup name

Revert "remove invalid multibyte char (US-ASCII) 'ç' from lookup name"

This reverts commit 7dbfcab4dc4bcb9473edc43651e7d53884f0e24d.

Add '# encoding: utf-8' to files containing special chars

Add '# encoding: utf-8' to files containing special chars

Add '# encoding: utf-8' to files containing special chars

remove useless Geocoder.config from test methods

refacto of ban lookup results method

change city serach param to fit naming conventions in ban lookup test

renamed no results ban lookup fixture to fit tests

removed no search results unnecessary test

remove useless commented code

add alias method to handle state and state_code + move from department to region name as state

refacto results method

LocationIq # for classes
location_iq # for config

* Add ip-api.com (ip lookup) support

This service returns better coordinates for Europe than other free ip lookup services available in geocoder.

* Clean the results class

Remove default responses for fields.

* Remove checking fields in url query

API already handles unknown fields, so this check is unnecessary.

* Add a test for using parameters directly in search method

* Use proper domain name

Use pro.ip-api.com domain in case when api key is in use, otherwise just ip-api.com.

* Handle invalid api key

* Add forsaken fixture

* Make uniform an invalid key handler with the other geocoder lookups

* Add ip-api.com (ip lookup) support

This service returns better coordinates for Europe than other free ip lookup services available in geocoder.

* Clean the results class

Remove default responses for fields.

* Remove checking fields in url query

API already handles unknown fields, so this check is unnecessary.

* Add a test for using parameters directly in search method

The Yahoo BOSS Placefinder API is being discontinued.

https://developer.yahoo.com/boss/placefinder/

Handle responses that only have one component in the Location field, assume this is a county and so return blank city