padrino/padrino-framework — pull request #1610 by tyabe (2014-02-28 15:45:25+00:00)
Title: Fix bug in Padrino::Mounter.app_constant (#1595)

If the module with the same name as the application class has already been defined,
Padrino::Mounter.app_constant had returned the very module object.

So I intend not to search towards ancestors with second parameter 'false' in 'const_defined?'.
This code is only valid in the Ruby 1.9 or later.