Update changelog

Author: fgrehm

CHANGELOG.md

@@ -1,3 +1,13 @@
+## [0.3.1](https://github.com/fgrehm/devstep/compare/v0.3.0...v0.3.1) (2015-03-04)
+
+BUG FIXES:
+
+  - baseimage: Install `nodejs-legacy` to fix Yeoman usage [[GH-91]]
+  - addons/postgres: Fix installation script [[GH-91]]
+
+[GH-91](https://github.com/fgrehm/devstep/pull/91)
+[GH-92](https://github.com/fgrehm/devstep/pull/92)
+
 ## [0.3.0](https://github.com/fgrehm/devstep/compare/v0.2.0...v0.3.0) (2015-02-12)
 
 BREAKING CHANGES: