Update for Rails 5: no "Listing" on index

[southwolf]

No description provided.

[moorage]

Thanks! is this backwards compatible with rails 4?

[southwolf]

@moorage I've updated the code to remain back compatibility for Rails 4 and fix #3. It requires loading your current Rails when running bootscaf. I haven't figure out how to load different versions of Rails in gemspec, so CI will fail (temporarily).

[moorage]

What do you mean "temporarily"?

Did you try spec.add_dependency "rails" ? Did that fail?

[southwolf]

@moorage The purpose of this pull request is to load and test your "current" version of Rails, but spec.add_dependency "rails" without version number in CI will only get the latest rails (4.2.6 for now, and 5.0 in future). CI will pass, but that's not what I want, and not what I mean.