chore: Prepare for 2.1.1 release. (#131)

Author: mikeproeng37

CHANGELOG.md

@@ -1,3 +1,12 @@
+## 2.1.1
+October 11th, 2018
+
+### Bug Fixes
+- fix(track): Send decisions for all experiments using an event when using track ([#120](https://github.com/optimizely/ruby-sdk/pull/120)).
+- EventBuilder uses the same logger as Project ([#122](https://github.com/optimizely/ruby-sdk/pull/122)).
+- Updating libraries for Ruby SDK ([#123](https://github.com/optimizely/ruby-sdk/pull/123)).
+- fix(datafile-parsing): Prevent newer versions datafile ([#124](https://github.com/optimizely/ruby-sdk/pull/124)).
+
 ## 2.1.0
 July 2nd, 2018
 

lib/optimizely/version.rb

@@ -17,5 +17,5 @@
 #
 module Optimizely
   CLIENT_ENGINE = 'ruby-sdk'
-  VERSION = '2.1.0'
+  VERSION = '2.1.1'
 end