Update the version to 1.3.3

Author: Sam Wierema

README.md

@@ -4,7 +4,7 @@ This repository contains the open source Ruby client for MessageBird's REST API.
 
 Requirements
 ------------
-- [Sign up](https://www.messagebird.com/en/signup) for a free MessageBird account
+- [Sign up](https://dashboard.messagebird.com/app/en/sign-up) for a free MessageBird account
 - Create a new `access_key` in the developers sections
 - MessageBird's API client for Ruby requires Ruby >= 1.9
 

lib/messagebird.rb

@@ -2,7 +2,7 @@
 $:.unshift(libdir) unless $:.include?(libdir)
 
 module MessageBird
-  CLIENT_VERSION = '1.3.2'
+  CLIENT_VERSION = '1.3.3'
   ENDPOINT       = 'https://rest.messagebird.com'
 end