Added CHANGELOG for #3

Author: weierophinney

CHANGELOG.md

@@ -0,0 +1,23 @@
+# Changelog
+
+All notable changes to this project will be documented in this file, in reverse chronological order by release.
+
+## 2.5.2 - 2016-02-17
+
+### Added
+
+- Nothing.
+
+### Deprecated
+
+- Nothing.
+
+### Removed
+
+- Nothing.
+
+### Fixed
+
+- [#3](https://github.com/zendframework/zend-uri/pull/3) updates dependencies to
+  allow the component to work with both PHP 5 and PHP 7 versions, as well as
+  all 2.X versions of required Zend components.