Handle correctly nested declared params

[jbarreneche]

Hi,

the method declared from Grape::Endpoint wasn't handling correctly the case when there were grouped params

eg:

require 'grape'

class Test < Grape::API
  params do
    group :nested do
      requires :value
    end
  end
  get "/" do
    declared(params).inspect
  end
end

run Test

curl localhost:9292/\?nested\[value\]\=3

currently this returns {:value=>nil} instead of {:nested => { :value => 3 } }

Please let me know if you want me to change or add something

Thanks!!!

[dblock]

This looks solid. Could you please update CHANGELOG, too. Thx.

[dblock]

cc: @mbleigh in case I am missing something here ...

[dblock]

Merged, thank you.

[jbarreneche]

Thank you for the quick merge and for grape itself!!