sdk/ruby: increment version to 2.2

Closes #4586

Author: Dominic Dagradi <ddagradi@gmail.com>
Date: Wed Aug 8 12:39:04 2018 -0700
upstream:819bf6b6d7f09bccfdaa6523eccf453083ff3ced

Author: dominic

CHANGELOG.md

@@ -1,12 +1,15 @@
 # Sequence Ruby SDK changelog
 
-## 2.2.rc.2 (20180731)
+## 2.2 (20180808)
+
+* No changes from release candidates
 
+## 2.2.rc.2 (20180731)
 ## 2.2.rc.1 (20180713)
 
-* Added preliminary support for dynamically addressing
-  different API hosts when needed.
-* Added support for updating action tags
+* Added `update_tags` to `Action`.
+* Added support for dynamically addressing different API hosts for 
+  individual ledgers. Internal APIs only, works automatically.
 
 ## 2.1 (20180516)
 

README.md

@@ -14,7 +14,7 @@ for the language's schedule for security and bug fixes.
 Add the following to your `Gemfile`:
 
 ```ruby
-gem 'sequence-sdk', '~> 2.1'
+gem 'sequence-sdk', '~> 2.2'
 ```
 
 ### In your code

lib/sequence/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Sequence
-  VERSION = '2.2.rc.2'
+  VERSION = '2.2'
 end