Use roadie-rails 1.2 (#25807).

git-svn-id: https://svn.redmine.org/redmine/trunk@16861 e93f8b46-1217-0410-a6f0-8f06a7374b81

Gemfile

@@ -9,7 +9,7 @@ gem "coderay", "~> 1.1.1"
 gem "request_store", "1.0.5"
 gem "mime-types", "~> 3.0"
 gem "actionpack-xml_parser"
-gem "roadie-rails"
+gem "roadie-rails", "~> 1.2.1"
 gem "roadie", "~> 3.2.1"
 gem "mimemagic"