Update version and Changelog for 2.0.4

Author: Dan Richelson

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 All notable changes to the LaunchDarkly Java SDK will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org).
 
+## [2.0.4] - 2017-01-26
+### Changed
+- Made Composer requirements less strict
+
 ## [2.0.3] - 2017-01-05
 ### Changed
 - Fixed botched 2.0.2 release: Better handling of null vs false when evaluating.

VERSION

@@ -1 +1 @@
-2.0.3
+2.0.4

src/LaunchDarkly/LDClient.php

@@ -10,7 +10,7 @@
  */
 class LDClient {
     const DEFAULT_BASE_URI = 'https://app.launchdarkly.com';
-    const VERSION = '2.0.3';
+    const VERSION = '2.0.4';
 
     /** @var string */
     protected $_sdkKey;