Forward port 3.5.3 release notes.

Author: myronmarston

Changelog.md

@@ -1,5 +1,5 @@
 ### Development
-[Full Changelog](http://github.com/rspec/rspec-core/compare/v3.5.2...master)
+[Full Changelog](http://github.com/rspec/rspec-core/compare/v3.5.3...master)
 
 Enhancements:
 
@@ -13,6 +13,9 @@ Enhancements:
 * Add `config.fail_if_no_examples` option which causes RSpec to fail if
   no examples are found. (Ewa Czechowska, #2302)
 
+### 3.5.3 / 2016-09-02
+[Full Changelog](http://github.com/rspec/rspec-core/compare/v3.5.2...v3.5.3)
+
 Bug Fixes:
 
 * When applying shared group metadata to a host group, overwrite