David Goldelocks

If end users want either of the monkey patches, they can require them directly: ```ruby require 'deep_merge/deep_merge_hash' ``` ```ruby require 'deep_merge/rails_compat' ```

@jdesrosiers ah I see the problem: we are using sub-applications, and the CORS extension is registered on the base application sinatra walks the inheritance tree inside `route!`: https://github.com/sinatra/sinatra/blob/e69b6b9dee7165d3a583fc8a6af10ceee1ea687d/lib/sinatra/base.rb#L1029-L1032 but `allowed_methods`...