CHANGELOG.md in sk_api_schema-0.7.1 vs CHANGELOG.md in sk_api_schema-0.7.2

@@ -1,9 +1,15 @@
 # SalesKing API Changelog
 
 See [commit messages](https://github.com/salesking/sk_api_schema/commits/) for details.
 Also signup to our [Developer Newsletter](http://www.salesking.eu/dev/newsletter/) to stay up-to-date !!!
 
+##2013-04
+
+* new attachments/{ID}/download url DEPRECATE attachment.url
+* add lead_date to contact
+* make contact.lead_ref + lead_source text fields
+
 ##2013-03
 
 * add path method to schema: SK::Api::Schema.path
 
 ##2013-01