updated CHANGELOG.md

Author: unclechu

CHANGELOG.md

@@ -1,6 +1,13 @@
 Changelog
 =========
 
+v0.5.0
+------
+
+- Auto-testing provided by Travis CI;
+- Support older Node.JS versions (`v0.11.x` and `v0.10.x`);
+- Removed tests files from npm package.
+
 v0.4.2
 ------
 
@@ -11,14 +18,13 @@ v0.4.1
 
 - Removed test code from <b>npm</b> package
   ([see pull request #21](https://github.com/unclechu/node-deep-extend/pull/21));
-- Increased minimal version of Node from 0.4.0 to 0.12.0
+- Increased minimal version of Node from `0.4.0` to `0.12.0`
   (because can't run tests on lesser version anyway).
 
 v0.4.0
 ------
 
-Broken backward compatibility with v0.3.x
-
+- **WARNING!** Broken backward compatibility with `v0.3.x`;
 - Fixed bug with extending arrays instead of cloning;
 - Deep cloning for arrays;
 - Check for own property;