Update rolify to 5.1.0

[shlok007]

https://github.com/RolifyCommunity/rolify/blob/master/CHANGELOG.rdoc

[differentreality]

I think this should be included in #1087

Also @shlok007 you have another 6 open PRs, at least 3 of them have recent comments and need to be updated. I would strongly suggest you first take care of your existing PRs, and work on new stuff after they are merged.

[shlok007]

I think this should be included in #1087

The reason I am updating dependencies to their rails 5 compatible version separately is because some gems ( e.g. devise see changelog) have breaking changes with their rails 5 compatible version. Updating rails version and all dependencies, fixing their breaking changes in a single PR would be a little hard to review as well.

Also, not all gems follow semantic versioning or have maintained a perfect changelog. This could help us find out which gems are no longer maintained or doesn't have a compatible version with rails 5 yet ( eg. rails-observers more details here ) and we can look for alternatives before proceeding with #1087 .

Also @shlok007 you have another 6 open PRs, at least 3 of them have recent comments and need to be updated. I would strongly suggest you first take care of your existing PRs, and work on new stuff after they are merged.

Thank you! I strongly agree, was just trying to cross off a few minor things from the todo list. I'll keep this in mind. 🙂

[differentreality]

I'll merge this, but let's open separate PRs for updating gems only if needed - I agree that for devise there are some more essential changes to be made, so opening a new PR just for that might make sense (depending on how many other gems have the same problem). Other than that, I would leave gem updating for the overall Rails 5 update.