Add fix to changelog [ci skip]

Author: cupakromer

Changelog.md

@@ -6,6 +6,7 @@ Bug Fixes:
   autoload does not find it in some environments. (Aaron Kromer, #1305)
 * `be_routable` matcher now has the correct description. (Tony Ta, #1310)
 * Fix dependency to allow Rails 4.2.x patches / pre-releases (Lucas Mazza, #1318)
+* Remove pre-loading of ActionMailer in the Railtie (Aaron Kromer, #1327)
 
 ### 3.2.0 / 2015-02-03
 [Full Changelog](http://github.com/rspec/rspec-rails/compare/v3.1.0...v3.2.0)