sdk/ruby: increment version to 1.5.2

Closes #3351

Author: Dan Croak <dan@statusok.com>
Date: Mon Apr 16 13:32:32 2018 -0700
upstream:ebffdc6e27f8b295c60a10a810f8d8948a47396b

Author: croaky

CHANGELOG.md

@@ -1,6 +1,6 @@
 # Sequence Ruby SDK changelog
 
-## 1.5.2 (201804??)
+## 1.5.2 (20180416)
 
 * Paginating objects using `.[list|sum].all` has
   been deprecated; the new interface is Ruby's `Enumerable` on the result

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', '~> 1.5.1'
+gem 'sequence-sdk', '~> 1.5.2'
 ```
 
 ### In your code

lib/sequence/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Sequence
-  VERSION = '1.5.1'
+  VERSION = '1.5.2'
 end