Bump version to v2.1.1

Author: hashknot

composer.json

@@ -2,7 +2,7 @@
   "name": "imgix/imgix-php",
   "description": "A PHP client library for generating URLs with imgix.",
   "type": "library",
-  "version": "2.1.0",
+  "version": "2.1.1",
   "license": "BSD-2-Clause",
   "keywords": [
     "imgix"

src/Imgix/UrlBuilder.php

@@ -4,7 +4,7 @@
 
 class UrlBuilder {
 
-    private $currentVersion = "2.1.0";
+    private $currentVersion = "2.1.1";
     private $domains;
     private $useHttps;
     private $signKey;