Added CHANGELOG for #8

Author: weierophinney

CHANGELOG.md

@@ -2,16 +2,31 @@
 
 All notable changes to this project will be documented in this file, in reverse chronological order by release.
 
-## 2.5.2 - 2015-06-15
+## 2.5.3 - 2016-02-29
 
 ### Added
 
-- [#4](https://github.com/zendframework/zend-authentication/pull/4) adds
-  documentation, which can be compiled using [bookdown](http://bookdown.io):
-  `bookdown doc/bookdown.json`; docs can then be viewed by starting a web server
-  via `php -S 0.0.0.0:8000 -t doc/html/` and browsing to http://localhost:8000/.
+- Nothing.
+
+### Deprecated
+
+- Nothing.
+
+### Removed
+
+- Nothing.
+
+### Fixed
+
+- Nothing.
+
+## 2.5.2 - 2015-06-15
+
+### Added
 
-  (Add bookdown globally using `composer global require bookdown/bookdown`.)
+- [#8](https://github.com/zendframework/zend-authentication/pull/8) updates
+  dependencies to allow usage of zend-stdlib 3.0, and to require tests to
+  pass against PHP 7.
 
 ### Deprecated