Merge pull request #93 from launchdarkly/2.5.0

prepare 2.5.0 release

Author: eli-darkly

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 All notable changes to the LaunchDarkly PHP SDK will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org).
 
+## [2.5.0] - 2018-02-13
+### Added
+- Adds support for a future LaunchDarkly feature, coming soon: semantic version user attributes.
+
 ## [2.4.0] - 2018-01-04
 ### Added
 - Support for [private user attributes](https://docs.launchdarkly.com/docs/private-user-attributes).

CONTRIBUTING.md

@@ -1,4 +1,4 @@
 Contributing to the LaunchDarkly SDK for PHP
 ================================================
 
-We encourage pull-requests and other contributions from the community. We've also published an [SDK contributor's guide](http://docs.launchdarkly.com/v1.0/docs/sdk-contributors-guide) that provides a detailed explanation of how our SDKs work.
+We encourage pull-requests and other contributions from the community. We've also published an [SDK contributor's guide](http://docs.launchdarkly.com/docs/sdk-contributors-guide) that provides a detailed explanation of how our SDKs work.

VERSION

@@ -1 +1 @@
-2.4.0
+2.5.0