chore: preparing 1.5.0 release (#300)

* chore: preparing 1.5.0 release

Author: pawels-optimizely

CHANGELOG.MD

@@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## [Unreleased]
 Changes that have landed but are not yet released.	Changes that have landed but are not yet released.
 
+## [1.5.0] - October 29th, 2020
+## New Features
+- Correct logic for rollout service ([#296](https://github.com/optimizely/go-sdk/pull/296))
+- Add support for sending flag decisions along with decision metadata ([#292](https://github.com/optimizely/go-sdk/pull/292))
+
 ## [1.4.0] - October 2nd, 2020
 ## New Features
 - Add MatchRegistry for custom match implementations. ([#286](https://github.com/optimizely/go-sdk/pull/286)) …

pkg/event/version.go

@@ -18,7 +18,7 @@
 package event
 
 // Version is the current version of the client
-var Version = "1.4.0"
+var Version = "1.5.0"
 
 // ClientName is the name of the client
 var ClientName = "go-sdk"