Merge pull request php-webdriver#308 from OndraM/changelog-update

Update changelog according to latest release

Author: gfosco

CHANGELOG.md

@@ -2,6 +2,9 @@
 This project versioning adheres to [Semantic Versioning](http://semver.org/).
 
 ## Unreleased
+- Fixed FirefoxProfile to support installation of extensions with custom namespace prefix in their manifest file
+
+## 1.1.2 - 2016-06-04
 - Added ext-curl to composer.json
 - Added CHANGELOG.md
 - Added CONTRIBUTING.md with information and rules for contributors