Legacy RSpec matcher to version up

    bundle exec rake cucumber

to log

```
Capybara::RSpecMatchers::HaveText implements a legacy RSpec matcher
protocol. For the current protocol you should expose the failure messages
via the failure_message and failure_message_when_negated methods.
```

See
https://github.com/jnicklas/capybara/issues/1254
https://github.com/jnicklas/capybara/pull/1219

paperclip.gemspec

@@ -36,7 +36,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency('aruba')
   s.add_development_dependency('nokogiri')
   # Ruby version < 1.9.3 can't install capybara > 2.0.3.
-  s.add_development_dependency('capybara', '= 2.0.3')
+  s.add_development_dependency('capybara')
   s.add_development_dependency('bundler')
   s.add_development_dependency('fog', '~> 1.0')
   s.add_development_dependency('launchy')