Replace 'http://www.elasticsearch.org' with 'https://www.elastic.co' in documentation. (elastic#881)

When Elasticsearch changed their FQDN from/www.elasticsearch.org to www.elastic.co,
they preserved most of their page's paths but didn't setup granular redirect rules.

For example:

Going to `http://www.elasticsearch.org/contributor-agreement/` will redirect browsers
to https://www.elastic.co/, but drop the path `/contributor-agreement/`.

Author: Stephen Tiberius Schor

CONTRIBUTING.md

@@ -5,7 +5,7 @@ The process for contributing to any of the [Elasticsearch](https://github.com/el
 2. Make sure your changes don't break any existing tests, and that you add tests for both bugfixes and new functionality.
 
 3. **Sign the contributor license agreement.**
-Please make sure you have signed the [Contributor License Agreement](http://www.elasticsearch.org/contributor-agreement/). We are not asking you to assign copyright to us, but to give us the right to distribute your code without restriction. We ask this of all contributors in order to assure our users of the origin and continuing existence of the code. You only need to sign the CLA once.
+Please make sure you have signed the [Contributor License Agreement](https://www.elastic.co/contributor-agreement/). We are not asking you to assign copyright to us, but to give us the right to distribute your code without restriction. We ask this of all contributors in order to assure our users of the origin and continuing existence of the code. You only need to sign the CLA once.
 
 4. Submit a pull request.
 Push your local changes to your forked copy of the repository and submit a pull request. In the pull request, describe what your changes do and mention the number of the issue where discussion has taken place, eg “Closes #123″.

README.md

@@ -153,7 +153,7 @@ See more information in the documentation  for the [`elasticsearch-extensions`](
 
 This software is licensed under the Apache 2 license, quoted below.
 
-    Copyright (c) 2014 Elasticsearch <http://www.elasticsearch.org>
+    Copyright (c) 2014 Elasticsearch <https://www.elastic.co>
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

elasticsearch-model/README.md

@@ -5,7 +5,7 @@ the [`elasticsearch`](https://github.com/elastic/elasticsearch-ruby) library.
 
 It aims to simplify integration of Ruby classes ("models"), commonly found
 e.g. in [Ruby on Rails](http://rubyonrails.org) applications, with the
-[Elasticsearch](http://www.elasticsearch.org) search and analytics engine.
+[Elasticsearch](https://www.elastic.co) search and analytics engine.
 
 ## Compatibility
 
@@ -322,7 +322,7 @@ Elasticsearch::Model::Response::Response.__send__ :include, Elasticsearch::Model
 #### The Elasticsearch DSL
 
 In most situations, you'll want to pass the search definition
-in the Elasticsearch [domain-specific language](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl.html) to the client:
+in the Elasticsearch [domain-specific language](https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl.html) to the client:
 
 ```ruby
 response = Article.search query:     { match:  { title: "Fox Dogs" } },
@@ -760,7 +760,7 @@ SERVER=start TEST_CLUSTER_COMMAND=$PWD/tmp/elasticsearch-1.0.0.RC1/bin/elasticse
 
 This software is licensed under the Apache 2 license, quoted below.
 
-    Copyright (c) 2014 Elasticsearch <http://www.elasticsearch.org>
+    Copyright (c) 2014 Elasticsearch <https://www.elastic.co>
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

elasticsearch-model/lib/elasticsearch/model/indexing.rb

@@ -30,7 +30,7 @@ module Model
     #
     module Indexing
 
-      # Wraps the [index settings](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/setup-configuration.html#configuration-index-settings)
+      # Wraps the [index settings](https://www.elastic.co/guide/en/elasticsearch/reference/current/index.html)
       #
       class Settings
         attr_accessor :settings
@@ -48,7 +48,7 @@ def as_json(options={})
         end
       end
 
-      # Wraps the [index mappings](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/mapping.html)
+      # Wraps the [index mappings](https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping.html)
       #
       class Mappings
         attr_accessor :options, :type
@@ -308,7 +308,7 @@ def delete_index!(options={})
         #
         #     Article.__elasticsearch__.refresh_index! index: 'my-index'
         #
-        # @see http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/indices-refresh.html
+        # @see https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-refresh.html
         #
         def refresh_index!(options={})
           target_index = options.delete(:index) || self.index_name

elasticsearch-persistence/README.md

@@ -574,7 +574,7 @@ The ActiveRecord pattern has been deprecated as of version 6.0.0 of this gem. Pl
 
 This software is licensed under the Apache 2 license, quoted below.
 
-    Copyright (c) 2014 Elasticsearch <http://www.elasticsearch.org>
+    Copyright (c) 2014 Elasticsearch <https://www.elastic.co>
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

elasticsearch-persistence/examples/notes/README.markdown

@@ -21,7 +21,7 @@ The application demonstrates:
 
 This software is licensed under the Apache 2 license, quoted below.
 
-    Copyright (c) 2014 Elasticsearch <http://www.elasticsearch.org>
+    Copyright (c) 2014 Elasticsearch <https://www.elastic.co>
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

elasticsearch-rails/README.md

@@ -129,7 +129,7 @@ rails new searchapp --skip --skip-bundle --template https://raw.github.com/elast
 
 This software is licensed under the Apache 2 license, quoted below.
 
-    Copyright (c) 2014 Elasticsearch <http://www.elasticsearch.org>
+    Copyright (c) 2014 Elasticsearch <https://www.elastic.co>
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

elasticsearch-rails/lib/rails/templates/01-basic.rb

@@ -108,7 +108,7 @@
 create_file 'README.md', <<-README
 # Ruby on Rails and Elasticsearch: Example application
 
-This application is an example of integrating the {Elasticsearch}[http://www.elasticsearch.org]
+This application is an example of integrating the {Elasticsearch}[https://www.elastic.co]
 search engine with the {Ruby On Rails}[http://rubyonrails.org] web framework.
 
 It has been generated by application templates available at