chore: prepare 1.6.1 release (#310)

Author: Mat001

CHANGELOG.MD

@@ -7,6 +7,10 @@ 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.
 
+## [1.6.1] - March 2, 2021
+## Bug Fix
+- Fix issues for decision variables and reasons. [#309](https://github.com/optimizely/go-sdk/pull/309)
+
 ## [1.6.0] - February 16th, 2021
 ## New Features
 Introducing a new primary interface for retrieving feature flag status, configuration and associated experiment decisions for users ([#304](https://github.com/optimizely/go-sdk/pull/304), [#303](https://github.com/optimizely/go-sdk/pull/303), [#299](https://github.com/optimizely/go-sdk/pull/299), [#298](https://github.com/optimizely/go-sdk/pull/298), [#297](https://github.com/optimizely/go-sdk/pull/297)). The new `OptimizelyUserContext` class is instantiated with `CreateUserContext` and exposes the following APIs to get `OptimizelyDecision`:

pkg/event/version.go

@@ -18,7 +18,7 @@
 package event
 
 // Version is the current version of the client
-var Version = "1.6.0"
+var Version = "1.6.1"
 
 // ClientName is the name of the client
 var ClientName = "go-sdk"