Bump version to 2.2.0 for release (#132)

Author: mikeproeng37

CHANGELOG.md

@@ -1,3 +1,20 @@
+## [Unreleased]
+Changes that have landed in master but are not yet released.
+- fix(whitelisting): Whitelisted variation should continue when no valid variation is found. ([#123](https://github.com/optimizely/php-sdk/pull/123))
+- refac: Renames notification-center methods. ([#120](https://github.com/optimizely/php-sdk/pull/120))
+- fix: Validate Inputs for activate/track/getVariation. ([#105](https://github.com/optimizely/php-sdk/pull/105))
+
+## 2.2.0
+October 29th, 2018
+
+### New Features
+- feat(isValid): Adds getter to access isValid attribute. ([#128](https://github.com/optimizely/php-sdk/pull/128))
+
+### Bug fixes
+- fix(datafile-parsing): Prevent newer versions datafile. ([#127](https://github.com/optimizely/php-sdk/pull/127))
+- fix: Updating dependencies. ([#125](https://github.com/optimizely/php-sdk/pull/125))
+- fix(track): Send decisions for all experiments using an event when using track. ([#124](https://github.com/optimizely/php-sdk/pull/124))
+
 ## 2.1.0
 June 29th, 2018
 

src/Optimizely/Event/Builder/EventBuilder.php

@@ -37,7 +37,7 @@ class EventBuilder
     /**
      * @const string Version of the Optimizely PHP SDK.
      */
-    const SDK_VERSION = '2.1.0';
+    const SDK_VERSION = '2.2.0';
 
     /**
      * @var string URL to send event to.

tests/EventTests/EventBuilderTest.php

@@ -73,7 +73,7 @@ public function setUp()
                 ]],
                 'revision' => '15',
                 'client_name' => 'php-sdk',
-                'client_version' => '2.1.0',
+                'client_version' => '2.2.0',
                 'anonymize_ip'=> false,
             ];
         $this->expectedEventHttpVerb = 'POST';