* Allows radius to be a symbol representing a column in DB

* Proposed changes by @alexreisner:

- Keeping branching condition consistent
- Not overwrite the method argument: ‘radius’
- Not assigning two variables in a single line, and
- Add code comments where needed

By “proposed” I meant, I copy/paste them from his comment. But we are
in agreement.

* Fixes broken test in PR

Reverting back to freegeoip.net (from freegeoip.io) as
it appears to be the intended default host (see:
https://github.com/fiorix/freegeoip/issues/165).

* Add place_id search for Google search

* Add place_id example to wiki

* Update README.md

* fix

OpenCage recently added a new optional parameter "abbrv".
Some details: http://blog.opencagedata.com/post/160294347883/shrtr-pls

I noticed this option was in the README, but not in the template, so it
might be nice to have it generated in the template as well.

* 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

Maxmind geoip2 returns a collection of names in all available languages
for each field.
This commit allows us to change the language of a single result without
having to reconfigure Geocoder.

* Create methods removing port from ip addresses; Add test

* Update geocoder_reject_non_ipv4_addresses; Add more tests

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

cache must respond to #del, not #keys

This reverts commit 1c306367.

Changes batching in the rake task to work using a loop instead of the find_each method which does not work with Mongoid. This should fix #1126.

Value didn't match docs at https://smartystreets.com/docs/cloud/us-street-api

In the sea for example
[Fix #1131]

to_kilometers
to_miles
to_nautical_miles
mi_in_km
km_in_mi
km_in_nm
nm_in_km

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

support for opencagedata optional parameters