[DOCS] Update version tables

Author: polyfractal

Diff for: README.md

@@ -25,12 +25,14 @@ Version Matrix
 
 | Elasticsearch Version | Elasticsearch-PHP Branch |
 | --------------------- | ------------------------ |
-| >= 5.0                | 5.0               |
+| >= 6.0                | 6.0                      |
+| >= 5.0, < 6.0         | 5.0                      |
 | >= 2.0, < 5.0         | 1.0 or 2.0               |
 | >= 1.0, < 2.0         | 1.0 or 2.0               |
 | <= 0.90.x             | 0.4                      |
 
- - If you are using Elasticsearch 5.0+ , use Elasticsearch-PHP 5.0 branch.
+ - If you are using Elasticsearch 6.0+ , use Elasticsearch-PHP 6.0 branch.
+ - If you are using Elasticsearch 5.x , use Elasticsearch-PHP 5.0 branch.
  - If you are using Elasticsearch 1.x or 2.x, prefer using the Elasticsearch-PHP 2.0 branch.  The 1.0 branch is compatible however.
  - If you are using a version older than 1.0, you must install the `0.4` Elasticsearch-PHP branch. Since ES 0.90.x and below is now EOL, the corresponding `0.4` branch will not receive any more development or bugfixes.  Please upgrade.
  - You should never use Elasticsearch-PHP Master branch, as it tracks Elasticearch master and may contain incomplete features or breaks in backwards compat.  Only use ES-PHP master if you are developing against ES master for some reason.
@@ -48,7 +50,7 @@ The recommended method to install _Elasticsearch-PHP_ is through [Composer](http
     ```json
         {
             "require": {
-                "elasticsearch/elasticsearch": "~5.0"
+                "elasticsearch/elasticsearch": "~6.0"
             }
         }
     ```
@@ -82,11 +84,12 @@ You can find out more on how to install Composer, configure autoloading, and oth
 
 PHP Version Requirement
 ----
-Version 5.0 of this library requires at least PHP version 5.6.6 to function.  In addition, it requires the native JSON
+Version 6.0 of this library requires at least PHP version 7.0.0 to function.  In addition, it requires the native JSON
 extension to be version 1.3.7 or higher.
 
 | Elasticsearch-PHP Branch | PHP Version |
 | ----------- | ------------------------ |
+| 6.0         | >= 7.0.0                 |
 | 5.0         | >= 5.6.6                 |
 | 2.0         | >= 5.4.0                 |
 | 0.4, 1.0    | >= 5.3.9                 |

Diff for: docs/breaking-changes.asciidoc

@@ -1,21 +1 @@
-== Breaking changes from 2.x
-
-- Indices/Analyze Endpoint: `filters` and `char_filters` URI parameters have renamed to `filter` and `char_filter` respectively
-- SearchExists endpoint has been removed (use `size=0` and `terminate_after=1` instead)
-- Warmers have been removed because they are no longer useful
-- Indices/Optimize Endpoint has been removed (use `_forcemerge` instead)
-- MoreLikeThis (MLT) endpoint has been removed
-- DeleteByQuery endpoint has been removed.
-- Tasks/List and Tasks/Get are now separate endpoints (see: link:https://github.com/elasticsearch/elasticsearch-php/commit/752d5a2[e0cc5f9])
-- Client requires PHP 5.6.6 or higher
-
-=== Deprecations
-
-- Percolator endpoints are deprecated and will be removed in Elasticsearch 6.0
-
-=== Internal BWC Breaks
-
-- Namespace injection has changed slightly.  If you use custom namespaces, you'll need to update your code (see: Add better ability to inject namespaces link:https://github.com/elasticsearch/elasticsearch-php/commit/b1a27b7[b1a27b7])
-- Endpoints no longer use the Transport directly.  If you use custom endpoints, you'll need to do some minor
-refactoring (see: Refactor to remove Transport dependence in endpoints link:https://github.com/elasticsearch/elasticsearch-php/commit/ecd454c[ecd454c])
-- To facilitate testing and other features, the `ConnectionInterface` has expanded to obtain some more methods (link:https://github.com/elasticsearch/elasticsearch-php/commit/8bcf1a8[getPath()], link:https://github.com/elasticsearch/elasticsearch-php/commit/586fbdb[getUserPass()], link:https://github.com/elasticsearch/elasticsearch-php/commit/445fdea[getHost()])
+== Breaking changes from 5.x

Diff for: docs/installation.asciidoc

@@ -2,7 +2,7 @@
 
 Elasticsearch-php only has a three requirements that you need to worry about:
 
-* PHP 5.6.6 or higher
+* PHP 7.0.0 or higher
 * http://getcomposer.org[Composer]
 * http://php.net/manual/en/book.curl.php[ext-curl]: the Libcurl extension for PHP (see note below)
 * Native JSON Extensions (`ext-json`) 1.3.7 or higher
@@ -26,7 +26,8 @@ The master branch will always track Elasticsearch master, but it is not recommen
 [width="40%",options="header",frame="topbot"]
 |============================
 |Elasticsearch Version | Elasticsearch-PHP Branch
-| >= 5.0                | `5.0`
+| >= 6.0                | `6.0`
+| >= 5.0, <= 6.0        | `5.0`
 | >= 1.0, <= 5.0        | `1.0`, `2.0`
 | <= 0.90.*             | `0.4`
 |============================
@@ -39,7 +40,7 @@ The master branch will always track Elasticsearch master, but it is not recommen
 --------------------------
 {
     "require": {
-        "elasticsearch/elasticsearch": "~5.0"
+        "elasticsearch/elasticsearch": "~6.0"
     }
 }
 --------------------------