Delegates features list request to rollout

[pote]

#features was returning an empty array on my app - I'm setting it up from scratch with the latest version of rollout.

I noticed $rollout does actually have a shortcut for its features, so I'm delegating the wrapper's call to rollout instead of relying on its own separate implementation, fixes my problem. :)

[kyleries]

@pote - Thanks for the PR! We're working on addressing this discrepancy currently but will likely not go down the path of using ActiveSupport#delegate for the same reasons mentioned here #3 . Let me know if you disagree, otherwise I'll be closing this issue. Glad it worked for you though. :wink:

If you'd like to submit an alternative, feel free, otherwise #25 is looking promising if you'd like to experiment with, or weigh in on, that solution.