Updated CHANGELOG

Author: IlCallo

CHANGELOG.md

@@ -2,6 +2,23 @@
 
 All notable changes to `laravel-cloudfront-url-signer` will be documented in this file.
 
+## Unreleased
+- Updated CHANGELOG to cover undocumented releases
+
+## 1.0.0 - 2018-02-19
+- Added Laravel 5.6 compliance
+
+## 0.1.5 - 2018-02-18
+- getExpirationTimestamp now returns int value instead of string to overcome an AWS SDK bug
+
+## 0.1.4 - 2018-02-13
+- Refactored tests
+- Switched to UrlSigner class instead of CloudFrontClient
+
+## 0.1.3 - 2018-02-09
+- Fixed README typo
+- $expiration default behaviour moved to internal `sign()` method instead of helper
+
 ## 0.1.2 - 2018-02-09
 
 - Fixed config publishing